Granted Patent
Utility
US 4,987,336 · App. 07/062,923
Reversible short-circuit and the use of said short-circuit in a photoelectric tube
Inventors:
Pierre L'Hermite, Michel Vergne, Alain Escapoulade
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Jun 16, 1987
Inventors
Pierre L'Hermite
Michel Vergne
Alain Escapoulade
Assignee (at issue)
U.S. Philips 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.