Rubsam Corp. v. General Motors Corp.

This is an action for damages for the alleged breach of a license agreement to pay-royalties on inventions and improvements relating to demountable rim wheel construction. Four patents were originally involved. In Rubsam Corp. v. General Motors Corp., 281 Mich. 691, it was decided that there had been no use by defendant of patent 1. The case was thereafter remanded to circuit court for determination of whether patents 2, 3, and 4 had been used by defendant. On trial, the lower court entered judgment for no cause of action on the finding that there had been no use by defendant of the patents…