Granted Patent
Utility
US 6,721,100 · App. 10/197,865
Sandwiched thin film optical filter
Inventor:
Markus K. Tilsch
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jul 19, 2002
Inventor
Markus K. Tilsch
Assignee (at issue)
JDS Uniphase 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.