Granted Patent
Utility
US 4,348,587 · App. 06/207,107
Fiber optic transducer for measuring current or magnetic field
Inventors:
Gregory L. Tangonan, Robert J. Morrison, Joseph A. Wysocki, David L. Persechini
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Nov 17, 1980
Inventors
Gregory L. Tangonan
Robert J. Morrison
Joseph A. Wysocki
David L. Persechini
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.