December 8, 2014
- 291 Patents
- 291XIII Decisions on the Validity, Construction, and Infringement of Particular Patents
- 291k328 Patents Enumerated
- 291k328(2) Original utility
Claims 1, 2, 5, and 6 of patent No. 2,968,164, claiming a method for making snow which involves spraying water from the hub of a propeller, which water was then carried by air stream and then cooled and made into snow, were valid against claim of obviousness.
Hanson v. Alpine Valley Ski Area, Inc., 611 F.2d 156, (C.A.6 (Mich.)., 1979)