Granted Patent
Utility
US 5,426,805 · App. 08/111,429
Walk-behind self-propelled broom sweeper
Inventor:
Robert Fisher
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Aug 24, 1993
Inventor
Robert Fisher
Assignee (at issue)
Waldon, 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.