Granted Patent
Utility
US 5,844,673 · App. 08/061,935
Axial led position detector for determining the angular position of a rotatable element
Inventor:
Richard J. Ivers
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Apr 17, 1998
Inventor
Richard J. Ivers
Assignee (at issue)
Cambridge Technology, Inc.
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.