Granted Patent
Utility
US 6,549,324 · App. 09/779,196
Trimmer iris for use with a digitally shape-controlled lighting system
Inventor:
Nigel Evans
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Feb 7, 2001
Inventor
Nigel Evans
Assignee (at issue)
LIGHT AND SOUND DESIGN 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.