Granted Patent
Utility
US 6,707,980 · App. 10/061,601
Variable attenuator for optical fiber applications
Inventors:
Ryan Robert Holman, David N. Ridgway
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Jan 31, 2002
Inventors
Ryan Robert Holman
David N. Ridgway
Assignee (at issue)
Fitel USA Corp.
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.