Granted Patent
Utility
US 4,278,916 · App. 06/099,770
Instant-on light source
Inventors:
Robert J. Regan, Paul O. Haugsjaa
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Dec 3, 1979
Inventors
Robert J. Regan
Paul O. Haugsjaa
Assignee (at issue)
GTE Laboratories Incorporated
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.