Granted Patent
Utility
US 5,620,198 · App. 08/050,481
Collar for trailer hitch receiver
Inventor:
John Borchers
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jun 9, 1994
Inventor
John Borchers
Assignee (at issue)
Reese Products, 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.