Granted Patent
Utility
US 4,801,802 · App. 06/153,923
Imaging, device, elements and systems
Inventor:
Clive M. Dyson
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Apr 30, 1980
Inventor
Clive M. Dyson
Assignees (at issue)
Philips Electronic
LP INDUSTRIES 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.