Granted Patent
Utility
US 6,155,590 · App. 09/206,453
Hitchball securing device
Inventors:
Richard Herrera, Robert Wesson
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Dec 7, 1998
Inventors
Richard Herrera
Robert Wesson
Assignee (at issue)
U-HAUL INTERNATIONAL, 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.