Granted Patent
Utility
US 4,383,793 · App. 06/238,425
Tractor implement mount
Inventor:
Norman F. Weir
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Feb 26, 1981
Inventor
Norman F. Weir
Assignee (at issue)
Chromalloy American Corp.
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.