Granted Patent
Utility
US 5,016,310 · App. 07/396,132
Floor scrubber having laterally variable scrub brush position
Inventors:
Robert A. Geyer, Terence A. Peterson
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Aug 21, 1989
Inventors
Robert A. Geyer
Terence A. Peterson
Assignee (at issue)
TENNANT 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.