Bray v. Tears

This is an interference proceeding wherein the Board of Appeals of the United States Patent Office awarded priority of invention to appellee with respect to the single count in issue, reversing the decision of the Examiner of Interferences which awarded priority of invention to appellants.

The count reads as follows:

1. A process for treating lubricating oil which includes diluting the lubricating oil with a normally gaseous liquefied hydrocarbon diluent maintained at superatmospheric pressure sufficient to maintain the diluent liquid, contacting said diluted oil with clay at such pressure and…