Coffield v. Sunny Line Appliance, Inc.

DONAHUE, Circuit Judge.

This appeal involves the validity, and, if valid, the question of infringement by appellee, of claims 8, 9, and 10 of United States letters patent No. 1,270,379, issued to James D. Coffield, June 25, 1918, on his application filed October 9, 1917. The patent relates to the form and arrangement of driving gear for washing machines and to the washing cylinder or clothes receptacle. The claims in suit are printed in the margin.1

*610The defendant in its answer denied the validity of these claims, pleaded a .number- of prior art patents, attached thereto certified copies of…