Granted Patent
Utility
US 6,282,027 · App. 09/280,792
Zoomable beamspreader with matched optical surfaces for non-imaging illumination applications
Inventor:
Thomas A. Hough
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Mar 26, 1999
Inventor
Thomas A. Hough
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.