Granted Patent
Utility
US 4,429,840 · App. 06/362,185
Winding spring especially for seat belt retractor
Inventors:
Jai CHAWLA, Arduino Colasanti
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Mar 26, 1982
Inventors
Jai CHAWLA
Arduino Colasanti
Assignee (at issue)
ALLIED CONSULTING, 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.