Granted Patent
Utility
US 4,386,695 · App. 06/205,461
Sweep auger construction for a bottom unloading mechanism
Inventor:
George E. Olson
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Nov 10, 1980
Inventor
George E. Olson
Assignee (at issue)
A. O. Smith Harvestore Products, Inc.
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.