McCabe v. Cramblet

This is an appeal in an interference proceeding wherein the Board of Appeals of the United States Patent Office affirmed a decision of the Examiner of Interferences, awarding priority of invention to appellee. The case is brought here by appellant for review of such decision of the Board of Appeals.

The issue is set forth in five counts, of which counts 1 and 3 are illustrative and read as follows:

1. A liquid contact switch comprising a sealed tube containing a quantity of electrical conducting fluid with two electric terminals sealed and supported in the walls thereof, and a cup of insulating…