Granted Patent
Utility
US 5,989,368 · App. 08/918,258
Carpet position sensor
Inventors:
Thomas Tillander, Dennis Keith Mull
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Aug 6, 1997
Inventors
Thomas Tillander
Dennis Keith Mull
Assignee (at issue)
North American Manufacturing Corporation
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.