Granted Patent
Utility
US 6,581,952 · App. 10/135,155
Trailer hitch cover with retractable safety cables
Inventor:
Charles J. MacKarvich
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Apr 29, 2002
Inventor
Charles J. MacKarvich
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.