Rathbun v. Wolverine Metal Specialties Co.

Plaintiff applied, on January 12, 1923, to the United States government for a patent on a radiator cap device. The patent was granted, and issued on October 7, 1924, and is numbered 1,510,701. After the application was made, and before the patent was. issued, plaintiff entered into a written contract with defendant, in which defendant, its successors and assigns, were licensed and empowered to manufacture said device on a royalty basis during the life of the patent, if one were granted. Defendant made an advance payment of $300 on royalties, and commenced to manufacture them. After…