Summer I. Strashun and William F. Talburt v. William R. Dorsey and Sumner I. Strashun

WORLEY, Chief Judge.

This appeal is from the decision of the Board of Patent Interferences awarding priority of invention in interference No. 91,305 to Dorsey and Strashun, the junior party.

The invention relates to a continuous process for dehydrating liquid or semi-liquid concentrates of juices, for example, orange or other citrus juices, at high temperature under sub-atmospheric pressure. The process involves forming a thin film or web of concentrate on the surface of an endless metal belt which travels over and between a heated drum and a cold drum in an evacuated chamber. The web is…