Granted Patent
Utility
US 4,928,459 · App. 07/329,001
Air system for a cotton harvester
Inventors:
Guy N. Thedford, Gary L. Wells
Patented Case
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Granted: May 29, 1990
Filed: Mar 27, 1989
Inventors
Guy N. Thedford
Gary L. Wells
Assignee (at issue)
J. I. Case 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.