Purex Corp. v. United Drug Co.

The appellant, Purex Corporation, Ltd., filed a petition in the United States Patent Office on May 31, 1930, for the registration of a trade-mark, “ Purex ”, used by it in connection with the sale of bleach and water softener. The appellee, United Drug Company, filed notice of opposition, relying upon certain trade marks used by it in connection with its business, and specified the following registered trade marks:

“Puretest”, registered February 1, 1921, for medicines and pharmaceutical preparations; “ Puretest ”, registered December 17, 1929, for the same; “Rex”, registered November 27,…