Granted Patent
Utility
US 6,796,356 · App. 10/260,835
Folding shades having minimal sag when folded
Inventor:
David A. Kirby
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Sep 30, 2002
Inventor
David A. Kirby
Assignee (at issue)
Lutron Electronics Co., 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.