McClain v. Ortmayer

Name: McClain v. Ortmayer
Cite: 141 U.S. 419
Year: 1891
Bluebook cite: McClain v. Ortmayer, 141 U.S. 419 (1891).
Author
URL: 141 U.S. 419
Item Type: case
Summary: The court stated that utility is the sole test of invention, and, inferentially at least, that the utility of a device is conclusively proven by the extent to which it has gone into general use. Found utility where the single spring roll had more use and better use than the double spring roll that already existed.

...more