134 F. 239 | U.S. Circuit Court for the District of Massachusetts | 1904
Complainant brought a bill in equity to restrain the infringement of letters patent No. 461,793, granted October 20, 1891. The bill alleged a covenant of the defendant, dated January 2, 1902, admitting the validity of the patent. The covenant in question (contained in a lease for the term of 17 years, which may be referred to by agreement of counsel) is as follows:
“Ten. The lessee admits the validity of each and every of the letters patent of the United States of America, owned by the» lessor or under which it is licensed; any of the inventions of which are or hereafter may be embodied in the leased machinery. The lessee also agrees that he will not directly or indirectly infringe or contest the validity of or the title of the lessor to any of the patents referred to in the ‘Schedule of Patents’ hereto annexed. The termination or cesser of this lease and license from any cause whatever shall not in any way affect the provisions of this clause or release or discharge the lessee from the admission and estoppel herein set forth.”
“Schedule of Patents “(Referred to in Article Ten herein).
“461,793, October 20, 1891.”
The defendant answered, setting up a British patent dated September 17, 1888, “for said alleged improvements set forth and claimed in said letters patent No. 461,793.” The complainant excepted to the allegation in the defendant’s answer above referred to as impertinent, and prayed that it be expunged. The case was thereupon referred to a master, who carefully considered the question presented for decision, and found that the portion of the answer objected to was not in violation'of the defendant’s covenant. The complainant duly excepted to the master’s report.
Rev. St. § 4887 [U. S. Comp. St. 1901, p. 3382], reads in part as follows:
“Every patent granted for an invention which has been previously patented in a foreign country shall be so limited as to expire at the same time with the foreign patent; * * * and in no case shall it be in force more than seventeen years.”
The sole question thus presented to the court is this: Did the defendant covenant that he would not contest the valid duration
Inconvenience would follow from adopting the defendant’s construction. The identity of the invention described in the foreign patent and in the patent in suit may be matter of .serious dispute. If the defendant can set up the term of the foreign patent, the covenant might fail to afford the complainant that protection from litigation for which it was obviously designed. By the construction of the covenant here adopted, its meaning may be gathered from the terms of the instrument itself and from the patents therein referred to.
The exceptions to the master’s report are therefore sustained, and the allegation excepted to in the defendant’s answer must be deemed impertinent and expunged therefrom.