Granted Patent
Utility
US 5,813,077 · App. 08/848,504
Spherical bearing arrangement for vehicle laundry brush
Inventors:
Michael J. Belanger, Robert J. Wentworth
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Apr 28, 1997
Inventors
Michael J. Belanger
Robert J. Wentworth
Assignee (at issue)
BELANGER, 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.