Granted Patent
Utility
US 4,901,072 · App. 07/156,690
Position detector utilizing gray code format
Inventor:
David A. Fox
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Feb 17, 1988
Inventor
David A. Fox
Assignee (at issue)
Westinghouse Electric Company LLC
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.