The complaint further alleges that for some time prior to February 11, 1946, when one of the patents expired, plaintiff manufactured only one type of a product which it could not have manufactured without said patents, and since that date, plaintiff has neither manufactured nor sold any products for which the possession of any such patents is essential. Paragraph 5. Beginning on said date, plaintiff commenced negotiations with defendant to effect a termination of said agreement in the course of which plaintiff took the position that it could terminate the agreement, and after having reassigned and reconveyed all of the Letters Patent, plant and equipment, and after having ceased to use the name De Bothezat for any purpose, it would be free to continue to manufacture and sell fans, ventilating equipment and any and all other products not covered by defendant’s patents, without any payment of any further sums. Paragraph 7. Defendant since said date has made claims and assertions that upon termination of the agreement, plaintiff will no longer have the right to continue the manufacture and sale of fans and ventilating equipment, and defendant “has led plaintiff to believe that upon termination of said agreement defendant will sue plaintiff if it does not cease the manufacture and sale of fans and ventilating equipment.” Paragraph 8. “Plaintiff seeks a declaration of the rights of the parties hereto to avoid the possible accrual of avoidable damages. If plaintiff is under no further obligation to defendant after full performance of its obligations as specified in the agreement upon termination, then defendant’s threats of suit and its claims that plaintiff cannot continue the business of manufacturing and selling fans and ventilating equipment are wrongful. If plaintiff is not so privileged to continue to manufacture and sell fans and ventilating equipment, plaintiff does not desire to deprive defendant of such rights to which it may be properly entitled.” Paragraph 9.
Plaintiff prays judgment that the court declare the rights and legal relations of the parties, particularly with respect to the proper interpretation and effect of the agreement, that the court declare it is the right of plaintiff to manufacture and sell products not infringing upon patents held by defendant after the termination of the agreement, wihout payment of further sums to defendant and without threat or interference with plaintiff or its customers by defendant and without any obligation to it.
Section 400 of Title 28 U.S.C.A., so far as material, provides: “In cases of actual controversy * the courts of the United States shall have power upon petition, declaration, complaint, or other appropriate pleadings to declare rights and other legal relations of any interested party petitioning for such declaration, whether or not further relief is or could be prayed, and such declaration shall have the force and effect of a final judgment or decree and be reviewable as such.”
It is settled that a controversy does not arise unless (1) it is one appropriate for judicial determination; (2) it is a dispute not of a hypothetical or abstract nature; (3) it is definite and concrete and touches the legal relations of parties having adverse interests; and (4) it is real and substantial and admits of specific relief through a decree of a conclusive character as disinguished from an opinion advising what the law would be upon a hypothetical state of facts. Ætna Life Ins. Co. v. Haworth, 300 U.S. 227, 240, 57 S.Ct. 461, 81 L.Ed. 617, 108 A.L.R. 1000. Such a controversy does not arise solely from the inability of a party to get an encouraging answer from the defendant; nor where the action calls for an advisory opinion. Kirk-man v. Welmington Trust Co., D. C., 61 F.Supp. 651, 654. An action of this kind should not be made the medium for securing an advisory opinion in a controversy which has not arisen. Coffman v. Breeze Corporations, 323 U.S. 316, 324, 65 S.Ct. 298, 89 L.Ed. 264. Federal Courts are without power to give advisory opinions; and it has long been considered correct practice not to decide hypothetical, abstract or contingent interests. Alabama State Federation of Labor v. McAdory, 325 U.S. 450, 461, 65 S.Ct. 1384, 89 L.Ed. 1725.
In Perlberg v. Northwestern Mut. Life Ins. Co., D. C., 62 F.Supp. 76, 78, an action was brought for a declaratory judgment to determine plaintiff’s right under an extend