Granted Patent
Utility
US 6,046,861 · App. 08/946,824
Zoom lens system having imaging and non-imaging ranges
Inventor:
Richard K. Steele
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Oct 8, 1997
Inventor
Richard K. Steele
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.