Granted Patent
Utility
US 5,509,162 · App. 08/343,654
Hinged brush retaining arm for sweepers
Inventor:
Jack L. Burgoon
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Nov 22, 1994
Inventor
Jack L. Burgoon
Assignee (at issue)
Clarke Industries, 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.