Granted Patent
Utility
US 5,237,233 · App. 07/578,000
Optoelectronic active circuit element
Inventor:
Jerry J. Conley
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Sep 4, 1990
Inventor
Jerry J. Conley
Assignee (at issue)
E.F. Johnson 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.