Granted Patent
Utility
US 5,455,985 · App. 08/179,230
Steerable side squeegees
Inventors:
Anthony Hamline, Steven L. Boomgaarden, Gregory J. Engel, Bryan Christensen
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jan 10, 1994
Inventors
Anthony Hamline
Steven L. Boomgaarden
Gregory J. Engel
Bryan Christensen
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.