Granted Patent
Utility
US 6,826,319 · App. 10/138,743
Optical isolator
Inventor:
Chun-Yu Lee
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: May 3, 2002
Inventor
Chun-Yu Lee
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.