Granted Patent
Utility
US 4,475,601 · App. 06/420,166
Variable width plow system with shim means adjustment
Inventors:
Eldon A. Harden, Michael A. McSweeney
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Sep 20, 1982
Inventors
Eldon A. Harden
Michael A. McSweeney
Assignee (at issue)
International Harvester Company
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.