Granted Patent
Utility
US 6,164,895 · App. 09/287,708
Trailer hitch mounted lifting attachment
Inventor:
Edward M. Croswell
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Apr 7, 1999
Inventor
Edward M. Croswell
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.