Granted Patent
Utility
US 5,583,445 · App. 08/191,884
Opto-electronic membrane probe
Inventor:
Ruth Ann Mullen
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Feb 4, 1994
Inventor
Ruth Ann Mullen
Assignee (at issue)
Hughes Aircraft 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.