Interference No. 103,322
the drum mixer, as described by Tubay, satisfies all the terms
of the count. Therefore, the junior party has provided
corroborated evidence of a successful test of the invention as
of the April 20, 1990 date. Accordingly, we credit the
junior party Brashears with an actual reduction to practice of
the subject matter of the interference as of April 20, 1990.
Senior Party
Senior party Linkletter’s record consists of the
declaration testimony of four witnesses--the two co-inventors,
Linkletter and Musil, and Messrs. Schlarmann and Welling.
Linkletter stated that he conceived of the invention on June
20, 1989 and recorded the invention in his notebook on June
21, 1989. LR3. LX-1 (referred to in the declaration as
exhibit A) is two pages from Linkletter’s notebook dated June
21, 1989. These pages are also signed by Schlarmann, who
stated that he read and understood these pages of the notebook
on June 21, 1989. LR10. We, therefore, credit Linkletter
with a corroborated conception of the subject matter of the
interference on June 21, 1989.
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