This is the second suit brought by appellant against the appellee for infringement of the Inwood and Lavenberg method patent 1,128,252 issued February 9,1915. The first ease involved three patents: A machine patent, a workholder patent, and the patent in suit. The trial court held in that case that there was no infringement of the machine and workholder patents, and that the method patent was void for laches because of inexcusable delay in filing the divisional application upon which it was issued. (D. C.)
After the dismissal of the bill without prejudice in that case, this suit was brought by the appellant against the appellee upon the same patent for the same infringement alleged in the former suit, and on motion of appellee was dismissed on the ground that the matters therein sought to be litigated were determined on the appeal in the former ease, but if not, the appellant was estopped from maintaining the action by its failure to request this court, after the rendition of its .opinion and before the decision of the Supreme Court in that case, to pass upon the validity of the patent, and further, that the refusal of this court to give further consideration to the patent after the rendition of the Supreme Court opinion, if not an adjudication of the patent, was a dismissal of the appellant’s claim thereunder as moot.
The Supreme Court did not in terms hold that the method patent was invalid. It did state that the reissue patent taught all that was disclosed by the method patent (page 710 of
The patent in suit issued ón a division of the workholder patent application, which was filed October -14, 1904. No method claims were filed at that time nor indeed on this application at all until 1912. It is true that such claims were filed on the machine application in November, 1904, but these were canceled in January, 1905, and from that date until March, 1912, the patentees made no method claims in any of their pending applications. It is no excuse for this delay that there were interferences in the Patent Office with the two machine patents, for, as thought by the trial judge in the first ease and as we are convinced from the Patent Office records, those interferences had nothing to do with a method or process.
In view of the circumstances above mentioned, the eases of Webster Electric Co. v. Splitdorf Electric Co.,
Another phase of the same general subject is illustrated by the eases of Woodbridge v. United States,
There is a further principle, perhaps announced by the Supreme Court for the first time in its decision of this ease in
Finally, it may be said that the statute requires the patentee to make known to the public the limits of the monopoly which he claims (Rev. St. § 4888, 35 USCA § 33), and where the invention is unitary in its nature the right to a patent is exhausted except as claimed in the first patent to issue. Thereafter deficiencies in the scope of the claims must be supplied by reissue. Such reissue patent would expire as of the date of expiration of the original patent upon which it is founded, and we do not think that an inventor should be permitted indirectly to obtain more in the way of an extended term of monopoly, as by keeping alive for years some fragment of his application and by division, than he could directly obtain by reissue. Compare General Motors Corp. v. Rubsam Corp.,
For the reasons above set forth the decree of the District Court is affirmed.
