Granted Patent
Utility
US 5,666,225 · App. 08/607,105
Multi-pass etalon filter
Inventor:
Paul Colbourne
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Feb 26, 1996
Inventor
Paul Colbourne
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.