This appeal is from a denial by our colleague, Judge Anderson, sitting in the District Court for the District of Connecticut, of a motion by Aladdin Industries, Incorporated, to modify a judgment and an order previously made by him in an action for threatened trademark infringement brought against it some years ago by the predecessor of King-Seeley Thermos Co., 289 F.Supp. 155. The opinion leading to the judgment (hereafter the decree of injunction) is reported in 207 F.Supp. 9 (D. Conn. 1962); the other order (hereafter the policing order) was entered on December 1963, and is not officially reported. We shall state only such facts and history as are necessary to understand the issues here presented.
The controversy stemmed from KingSeeley’s assertion of a valid trademark in the word Thermos, which it and its predecessors had registered in the United States Patent Office beginning in 1908. The initial registration was for “Thermos” printed as such; subsequent registrations covered the word in logotype and solid capitals; none related to the word beginning with a lower-case “t.” Learning from Aladdin that it was about to market its- line of vacuum-insulated containers through use of the term “thermos,” King-Seeley brought suit to enjoin this. Aladdin counterclaimed for a declaration of invalidity of the trademark. The court concluded that Aladdin had “sustained its burden of proof that the word ‘thermos’ is descriptive and generic and belongs in the public domain.” However, the court also concluded that there was “an appreciable, though minority, segment of the consumer public which knows, recognizes and uses the plaintiff’s trade-mark *33‘Thermos.’ ” 207 F.Supp. at 14. In an effort to allow Aladdin to make use of the generic term on the one hand and “to eliminate confusion and the possibility of deceit of * * * consumers” on the other, the court permitted Aladdin to use the word “thermos” in its literature, advertising and labels only under seven conditions. Id. at 14-15. The most important of these for present purposes were that the word must be entirely in lower case letters and be preceded “by the possessive of the name ‘Aladdin’ or, at its option, the possessive of ‘Aladdin’ plus one of defendant’s brand names.” In the decree the court retained jurisdiction “for the purpose of enabling either of the parties to this Final Judgment to apply to this Court at any time for such further orders and directions as may be necessary or appropriate for the construction or carrying out of this Final Judgment, or the modification or termination of any of the provisions thereof in the light of changed circumstances, or for the enforcement of compliance therewith or for the punishment of violations thereof.” King-Seeley appealed, Aladdin did not, and we affirmed, 321 F.2d 577 (2 Cir. 1963).
Aladdin shortly complained to the district court with respect to publicity and policing letters issued by King-Seeley. Finding that King-Seeley and, to a lesser extent, Aladdin had distorted the judgment, Judge Anderson issued a further order on December 30, 1963. This laid down ground rules designed to insure that all advertising or publicity referring to the judicial decision should fairly represent it, and authorized King-Seeley to send out policing letters to persons who it had cause to believe were violating its trademark. These could take the form of a simple notice of infringement and request for discontinuance or could add a citation, a citation and the summary of the decision that had been approved for use in publicity, or a discussion accompanied by a copy of this court’s opinion.
In the motion that gives rise to this appeal Aladdin sought modifications both of the decree of injunction and of the policing order. It proposed that the conditions listed in the original decree be continued only with respect to labels on its products and that in literature, advertising and publicity releases it should be permitted to use “thermos” in solid capitals or with an initial capital “when such typography and/or capitalization are consistent with that of other generic or common words appearing therewith or are in accordance with ordinary rules of grammar,” provided only that the material be identified as emanating from Aladdin or its representatives and that Aladdin should be prohibited, as it was in the decree of injunction, from using the words “genuine” or “original” or synonyms thereof relating or referring to “thermos.” In support of this it urged that the decree of injunction* had handicapped its use of the generic term in various ways, e. g., by preventing publication of testimonial letters from satisfied customers using only the word “thermos,” curtailing press releases since newspaper editors tended to reject those which made too frequent mention of the manufacturer, and preventing such effective forms of advertising as “Who makes the best thermos?” It submitted that any possibility of harm to King-Seeley from such advertising or publicity could be avoided by identifying the source, without requirements so severe as those in the decree.1 *34Aladdin also sought a modification of the policing order to provide that KingSeeley should not have reasonable cause to believe its trademark rights had been violated by the use of the term “thermos” by persons other than Aladdin in type forms not permitted to Aladdin itself, where such thiyd parties had not used the logotype “THERMOS” and the typographical form and/or capitalization were consistent with that for other generic words. In support of this Aladdin urged that King-Seeley, while ignoring advertisements where dealers used “Thermos” or “THERMOS” without any identification of source, sent policing letters whenever a dealer used the word in one of these forms and identified it with the product of a competitor, with the result that many Aladdin dealers became confused and refrained from advertising which the decree permitted. Finally, Aladdin urged that the policing order be amended in conformity with the changes sought in the decree of injunction, by altering the approved summary of the decision to explain that most of the restrictions applied only to Aladdin’s labeling, not to its publicity or advertising.
Judge Anderson denied both branches of the motion. Analyzing United States v. Swift & Co., 286 U.S. 106, 52 S.Ct. 460, 76 L.Ed. 999 (1932) and United States v. United Shoe Machinery Corp., 391 U.S. 244, 88 S.Ct. 1496, 20 L.Ed.2d 562 (1968), he thought the applicable rules of law to be:
“(1) Where a party seeks a modification which will relieve it of conditions or restrictions imposed by the original decree, it has the burden of showing that there has been such a change in circumstances that the danger at which the decree was directed no longer exists.
“(2) Where one party seeks a modification which will impose new and additional restrictions upon the other, it must prove that the provisions of the original decree have failed fully to achieve the objects at which they were directed.”
Considering the portion of Aladdin’s motion seeking modification of the decree of injunction to be governed by (1), the supposed rule of the Swift case, he held that whatever merit there might or might not be in Aladdin’s position, it had not sustained the burden of showing a change in circumstances. Viewing the portion of the motion that sought modification of the policing order as governed by (2), the less stringent rule of the United Shoe case, he held that Aladdin had not “carried its burden of showing that the injunction dated December 30, 1963, has been ineffective.”
Although we admire our brother Anderson’s effort to achieve precision, we think he gave the Swift decision a rigidity the Court did not intend. The defendants who there sought modification of a consent decree had been obliged by the very nature of the case to stake their claim on drastic changes in conditions and, as pointed out in United Shoe, 391 U.S. at 248, 88 S.Ct. at 1499, the language “to the effect that ‘nothing less than a clear showing of grievous wrong evoked by new and unforeseen conditions should lead us to change’ * * * the decree, must, of course, be read in light of this context.” Mr. Justice Cardozo said generally in Swift that:
“Power to modify the decree was reserved by its very terms, and so from the beginning went hand in hand with its restraints. If the reservation had been omitted, power there still would be by force of principles inherent in the jurisdiction of the chancery. A continuing decree of injunction directed to events to come is subject always to adaptation as events may shape the need.” 286 U.S. at 114, 52 S.Ct. at 462.
The true holding of Swift was stated in United Shoe, 391 U.S. at 248, 88 S.Ct. at 1499:
“Swift teaches that a decree may be changed upon an appropriate showing, and it holds that it may not be changed in the interests of the de*35fendants if the purposes of the litigation as incorporated in the decree (the elimination of monopoly and restrictive practices) have not been fully achieved.” 2
A case like this involves no such sharp conflict between wrong-doing and right-doing as did Swift. It presents rather the need for drawing the line between two kinds of right-doing, King-Seeley’s legitimate interest in protecting its trademark insofar as this is valid and Aladdin’s equally legitimate interest in being free to sell its products by use of a generic term, and their opposites, attempts by King-Seeley to extend its trademark beyond its legal bounds and efforts by Aladdin to encroach upon the protected area. “The source of the power to modify is of course the fact that an injunction often requires continuing supervision by the issuing court and always a continuing willingness to apply its power and processes on behalf of the party who obtained that equitable relief.” System Federation v. Wright, 364 U.S. 642, 647, 81 S.Ct. 368, 371, 5 L.Ed. 2d 349 (1961). Aladdin can be regarded as having obtained equitable relief in the decree of injunction quite as much as King-Seeley. That King-Seeley was the plaintiff was mere accident; the issue could as well have been tendered in a suit by Aladdin for declaratory relief. In that event the decree would very likely have directed that King-Seeley refrain from threatening Aladdin with liability for infringement under the prescribed conditions and Aladdin would now be seeking to “impose new and additional restrictions” upon what KingSeeley could do. While changes in fact or in law afford the clearest bases for altering an injunction, the power of equity has repeatedly been recognized as extending also to cases where a better appreciation of the facts in light of experience indicates that the decree is not properly adapted to accomplishing its purposes. See Singer Mfg. Co. v. Seinfeld, 89 F.2d 35, 37 (2 Cir.1937); International Silver Co. v. Oneida Community, 93 F.2d 437 (2 Cir.1938); John B. Stetson Co. v. Stephen L. Stetson Co., 128 F.2d 981 (2 Cir.1942); Morse-Starrett Prods. Co. v. Steccone, 205 F.2d 244, 248 (9 Cir.1953); cf. Restatement of Torts § 943, comment e (1939); 4 Callmann, Unfair Competition and Trade-marks § 88.5(c) (2d ed. 1950). Here, as Aladdin points out, the decree was entered before any experience concerning Aladdin’s use of “thermos” had been had.
We think therefore that the court imposed unduly rigid restrictions on its consideration of so much of Aladdin’s motion as requested modification of the decree of injunction and that it was free to grant relief if Aladdin could show that, in the light of experience, the detailed provisions of the decree seriously and needlessly impeded its exploitation of the generic term and that modification was necessary to achieve the results intended, even though this would take the form of reducing the restrictions imposed upon it. We express no opinion what the decision should be when that criterion is applied. Although the showing seems sufficient to justify an exercise of discretion in Aladdin’s favor, it did not compel this. While we hold there is power to modify' an injunction even in the absence of changed conditions, the power should be , sparingly exercised. “Firmness and sta/ bility must no doubt be attributed to continuing injunctive relief based on adjudicated facts and law, and neither the plaintiff nor the court should be subjected to the unnecessary burden of re-establishing what has once been decided.” System Federation v. Wright, supra, 364 U.S. at 647, 81 S.Ct. at 371. We thus *36leave decision to Judge Anderson under the standard we have enunciated.
Aladdin concedes that the judge applied the correct standard in passing on the branch of its motion that sought to modify the policing order, and we would see no reason for interfering with his refusal to alter this if it stood alone. Since, however, a modification of the decree of injunction might require some changes in the policing order, we vacate the order denying this part of Aladdin’s motion so that the judge may have freedom to make such modification of the policing order, if any, as may become appropriate.
The order denying Aladdin’s motion is vacated and the cause remanded for further proceedings not inconsistent with this opinion.
. Aladdin requested that the original decree further be amended to enjoin KingSeeley from using the word “genuine” with its trademark except when the word “brand” is also used — that is, “Genuine Thermos Brand” — with “genuine” and “brand” in the same size and type face. This addition was said to be necessary to prevent King-Seeley from using expressions that might imply erroneously that bottles made by its competitors are not in fact vacuum-insulated bottles, The judge denied this portion of the motion because Aladdin had made no substantial showing that the alleged danger of confusion existed, and the point is not pressed on appeal,
. While we have no occasion to consider the validity of the formulation in Sinclair Oil & Refining Co. v. American Oil Co., 405 F.2d 803, 813 (8 Cir.), cert. denied, 395 U.S. 905, 89 S.Ct. 1745, 23 L.Ed.2d 218 (1969), as applied to the case there in hand, we regard it as imposing too severe a requirement as a general rule.