Bell v. Hoffman

This is an appeal from a decision of the Board of Appeals of the United States Patent Office, affirming a decision of the examiner of interferences, awarding priority of invention to appellee.

The issue is stated in eight counts, of which counts 1 and 8 are illustrative and read as follows:

1. The process of preparing concrete mixtures for deferred use comprising the steps of mixing all ingredients at a central station to form concrete, transporting the mixture to a remote point and conditioning the mixture during transportation by subjecting the same to a combined slow, rolling, and flowing…