270 F. 693 | D.C. Cir. | 1921
This interference relates to an apparatus for burning pulverized fuel in boiler furnaces. Ball is the senior party, having filed in August, 1913, while the appellees, whom we shall refer to herein as Barnhurst, did not file until March, 1914. A patent issued to Ball while the applications were copending. Ball took no testimony, and is therefore restricted to his filing date. The three tribunals of the Patent Office concurred in holding that Barnhurst conceived the invention as early as July, 1913. It was stipulated by the parties that there was no lack of diligence on his part between that date and the date on which he filed his application. Consequently he was awarded priority.
Ball planted his case before the Examiner of Interferences and the Examiners in Chief on the assumption that Barnhurst, not having made his claims in time, was estopped under the ruling in Wintroath v. Chapman, 47 App. D. C. 428; Id., 252 U. S. 126, 40 Sup. Ct. 234, 64 L. Ed. 491. The first tribunal held against him, but was reversed by the second one. When the matter came-before the Commissioner on appeal, he withheld action until the Supreme Court of the United States disposed of the Wintroath Case. That case was reversed, and thereby the basis for Ball’s argument that Barnhurst was estopped was removed.