Granted Patent
Utility
US 6,031,653 · App. 09/141,843
Low-cost thin-metal-film interference filters
Inventor:
Yu-Jiu Wang
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Aug 27, 1998
Inventor
Yu-Jiu Wang
Assignee (at issue)
California Institute of Technology
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.