Granted Patent
Utility
US 5,229,835 · App. 07/741,851
Optical monitoring
Inventor:
Stephen J. Reinsch
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Aug 7, 1991
Inventor
Stephen J. Reinsch
Assignee (at issue)
Hughes Aircraft Company
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.