Granted Patent
Utility
US 5,873,138 · App. 08/980,786
Lost motion foot pedal linkage
Inventors:
Robert A. Geyer, Karl Hansen
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Dec 1, 1997
Inventors
Robert A. Geyer
Karl Hansen
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.