Granted Patent
Utility
US 5,463,791 · App. 08/299,276
Surface cleaning appliance
Inventor:
Michael J. Roden
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Sep 1, 1994
Inventor
Michael J. Roden
Assignee (at issue)
REDFIELD ENGINEERING COMPANY, LLC
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.