Granted Patent
Utility
US 6,697,549 · App. 10/002,892
Optical switch
Inventors:
Shang Chin Liao, Kun-Tsan Wu
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Dec 5, 2001
Inventors
Shang Chin Liao
Kun-Tsan Wu
Assignee (at issue)
Hon Hai Precision Ind. Co., Ltd.
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.