Granted Patent
Utility
US 6,691,697 · App. 10/138,003
Method for cutting thin film filter work pieces
Inventor:
Charles Leu
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: May 3, 2002
Inventor
Charles Leu
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.