Granted Patent
Utility
US 4,387,857 · App. 06/225,068
Grinder-mixer controls
Inventors:
Terry A. Young, William W. Mann, Charles M. Kline, Ernest A. Schoeneberger
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jan 14, 1981
Inventors
Terry A. Young
William W. Mann
Charles M. Kline
Ernest A. Schoeneberger
Assignee (at issue)
Sperry Corp.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.