Granted Patent
Utility
US 4,284,885 · App. 06/029,250
Optical potentiometer
Inventor:
Eugene T. Swensen
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Apr 12, 1979
Inventor
Eugene T. Swensen
Assignee (at issue)
Honeywell Limited
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.