IP Library › Granted Patent US 6,164,428
Granted Patent Utility
US 6,164,428 · App. 09/379,065

Wrap spring shade operator

Inventors: Joel Berman, Vincent J. Brown, Victor Erlikh, John Wilk
Patented Case View Patent ↗
Granted: Dec 26, 2000 Filed: Aug 23, 1999
Inventors
Joel Berman
Vincent J. Brown
Victor Erlikh
John Wilk
Assignee (at issue)
Joel Berman Associates, 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,164,428
App. No.
09/379,065
Filed
1999-08-23
Granted
2000-12-26
Kind
A