In re Carr

This is an appeal from a decision of the Board of Appeals of the United States Patent Office affirming with respect to claims 3, 5, 6, and 8, a decision of the Primary Examiner rejecting said claims, in view of the prior art, of an application for a patent for a new and useful improvement in heat exchange apparatus. Three claims were allowed.

Claims 3, o, and 6 are illustrative and read as follows:

3. A heat exchange apparatus comprising an outer upright casing, a much shorter inner upright casing concentric with said outer casing, the lower ends of said casings being united to form an annular…