Granted Patent
Utility
US 4,998,063 · App. 07/387,570
Fiber optic coupled magneto-optic sensor having a concave reflective focusing surface
Inventor:
Robert C. Miller
Patented Case
View Patent ↗
Granted: Mar 5, 1991
Filed: Jul 31, 1989
Inventor
Robert C. Miller
Assignee (at issue)
ABB Power T&D Company Inc.
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.