American Air Filter Company, Inc. v. Continental Air Filters, Inc.

O’SULLIVAN, Circuit Judge.

This appeal asks reversal of a judgment holding invalid U. S. Patent No. 2,807,330, owned by plaintiff-appellant American Air Filter Company, Inc. as assignee of the alleged inventor, Richard D. Rivers. Plaintiff American brought this action charging infringement of the patent against defendant-appellee Continental Air Filters, Inc., in the United States District Court for the Western District of Kentucky. The District Judge, having heard the proofs in the case at bar, withheld decision until the Ninth Circuit announced its opinion in Farr Co. v. American Air Filter…