Granted Patent
Utility
US 4,794,439 · App. 07/028,155
Rear entry photodiode with three contacts
Inventors:
Paul P. Webb, John Appert, Ronald E. Enstrom
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Mar 19, 1987
Inventors
Paul P. Webb
John Appert
Ronald E. Enstrom
Assignee (at issue)
General Electric 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.