Ellis v. Maddox

This is an appeal by William J. Ellis, tlie junior party, from a decision of the Board of Appeals of the United States Patent Office, affirming that of the Examiner of Interferences in awarding priority of invention in two counts of an interference to the senior party, William J. Maddox. The counts read as follows:

1. In a method of making a tubular abrasive element, the steps which consist in wrapping spirally upon a hollow mandrel an abrasive coated strip with the edges of adjacent convolutions in contact with each other, and securing said strip to said mandrel by interposing- a layer of…