Granted Patent
Utility
US 5,969,868 · App. 09/072,703
Sequential cross-fading color filters and system
Inventors:
James Bornhorst, Richard W. Hutton
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: May 5, 1998
Inventors
James Bornhorst
Richard W. Hutton
Assignee (at issue)
Vari-Lite, Inc.
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.