Granted Patent
Utility
US 6,587,288 · App. 09/805,412
Optical attenuation filter
Inventors:
Ralf Erz, Scott Charles McEldowney, Lauren R. Wendt
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Mar 12, 2001
Inventors
Ralf Erz
Scott Charles McEldowney
Lauren R. Wendt
Assignee (at issue)
Optical Coating Laboratory, 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.