Granted Patent
Utility
US 6,704,469 · App. 09/660,258
Polarization beam combiner/splitter
Inventors:
Ping Xie, Tim Day
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Sep 12, 2000
Inventors
Ping Xie
Tim Day
Assignee (at issue)
FINISAR CORPORATION
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.