Granted Patent
Utility
US 6,806,642 · App. 09/947,085
Light source with cascading dyes and BEF
Inventors:
David G. Pires, Charles I. Zovko
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Sep 4, 2001
Inventors
David G. Pires
Charles I. Zovko
Assignee (at issue)
Durel 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.