Granted Patent
Utility
US 4,493,601 · App. 06/354,938
High capacity, self-unloading forage hopper
Inventors:
Amos G. Hill, Arlen J. Wiens
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Mar 5, 1982
Inventors
Amos G. Hill
Arlen J. Wiens
Assignee (at issue)
Hesston 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.