Granted Patent
Utility
US 4,669,821 · App. 06/652,236
Radiation resistant optical fiber waveguide
Inventors:
G. Richard Blair, Joseph L. Pikulski
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Sep 19, 1984
Inventors
G. Richard Blair
Joseph L. Pikulski
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.