Granted Patent
Utility
US 4,383,716 · App. 06/201,566
Wheel trim retention system
Inventor:
Doyle L. Osborn
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Oct 28, 1980
Inventor
Doyle L. Osborn
Assignee (at issue)
NI Industries, Inc.
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.