Granted Patent
Utility
US 4,853,534 · App. 07/166,932
Optical fiber sensing system
Inventor:
John P. Dakin
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Mar 11, 1988
Inventor
John P. Dakin
Assignee (at issue)
Plessey Overseas 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.