Granted Patent
Utility
US 4,311,995 · App. 06/097,181
Sieve overload sensor for alerting the operator of a combine of a sieve overload condition
Inventor:
George R. Kinzie
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Nov 23, 1979
Inventor
George R. Kinzie
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.