Granted Patent
Utility
US 6,689,974 · App. 10/080,031
Pressure switch for motorized chairs
Inventor:
Edmond P. Guillot
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Feb 21, 2002
Inventor
Edmond P. Guillot
Assignee (at issue)
HICKORY SPRINGS MANUFACTURING 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.