Granted Patent
Utility
US 5,615,289 · App. 08/568,650
Bandpass optical filter
Inventors:
Gary S. Duck, David Henry Cushing, Stephen J. Mihailov
Patented Case
View Patent ↗
Granted: Mar 25, 1997
Filed: Dec 7, 1995
Inventors
Gary S. Duck
David Henry Cushing
Stephen J. Mihailov
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.