Granted Patent
Utility
US 4,891,475 · App. 07/261,433
Automotive beam selector switch system with flash-to-pass
Inventors:
Jeffrey K. Wiersing, Stephen R. Christian
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Oct 24, 1988
Inventors
Jeffrey K. Wiersing
Stephen R. Christian
Assignee (at issue)
United Technologies Automotive
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.