Granted Patent
Utility
US 5,268,635 · App. 07/922,895
Intelligent self-diagnosing and sparing light emitting diodes
Inventors:
James R. Bortolini, Gary J. Grimes
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Jul 31, 1992
Inventors
James R. Bortolini
Gary J. Grimes
Assignee (at issue)
AT&T Bell Laboratories
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.