Granted Patent
Utility
US 4,465,082 · App. 06/408,985
Impeller for rotary cleaning mechanism in combines
Inventor:
Gilbert J. I. Strubbe
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Aug 17, 1982
Inventor
Gilbert J. I. Strubbe
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.