Granted Patent
Utility
US 6,819,849 · App. 07/228,793
Intrusion detection system for secure fiber optics
Inventors:
Gregory L. Tangonan, Melvin E. Pedinoff
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Jul 29, 1988
Inventors
Gregory L. Tangonan
Melvin E. Pedinoff
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.