Granted Patent
Utility
US 6,167,185 · App. 09/198,607
Adjustable optical attenuator
Inventors:
John O. Smiley, Robert Laflamme
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Nov 24, 1998
Inventors
John O. Smiley
Robert Laflamme
Assignee (at issue)
JDS Fitel 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.