Granted Patent
Utility
US 6,594,063 · App. 09/663,816
Birefringent optical device
Inventors:
Brent Bergner, Richard D. Albert, D. L. Seekola
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Sep 15, 2000
Inventors
Brent Bergner
Richard D. Albert
D. L. Seekola
Assignee (at issue)
Spectraswitch, 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.