Granted Patent
Utility
US 4,466,549 · App. 06/418,693
Harvester grain bin with foldable extensions
Inventor:
Roger D. Hanaway
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Sep 16, 1982
Inventor
Roger D. Hanaway
Assignee (at issue)
Allis-Chalmers Corporation
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.