Granted Patent
Utility
US 4,906,976 · App. 07/170,269
Infrared detector
Inventor:
John K. Guscott
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Mar 18, 1988
Inventor
John K. Guscott
Assignee (at issue)
Aritech Corporation
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.