Granted Patent
Utility
US 4,756,039 · App. 07/066,799
Broom
Inventor:
John Pardo
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Jun 25, 1987
Inventor
John Pardo
Assignee (at issue)
The Drackett Company
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.