Granted Patent
Utility
US 6,530,102 · App. 09/421,909
Scrubber head anti-vibration mounting
Inventors:
Paul M. Pierce, Steven J. A. Waldhauser
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Oct 20, 1999
Inventors
Paul M. Pierce
Steven J. A. Waldhauser
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.