Granted Patent
Utility
US 4,993,032 · App. 07/458,134
Monolithic temperature stabilized optical tuning circuit for channel separation in WDM systems utilizing tunable lasers
Inventor:
Eric M. Bradley
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Dec 28, 1989
Inventor
Eric M. Bradley
Assignee (at issue)
General Dynamics Corp., Electronics Divn.
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.