Granted Patent
Utility
US 5,657,653 · App. 08/513,497
Dual lock with simultaneous retraction of latch and deadbolt by inside lever and uncoulpler between driving spindle and the lever
Inventors:
Frederick M. Hensley, Gary A. Dehn, Dario L. Pompeii, Jeffrey G. Towles
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Aug 10, 1995
Inventors
Frederick M. Hensley
Gary A. Dehn
Dario L. Pompeii
Jeffrey G. Towles
Assignee (at issue)
Schlage Lock Company LLC
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.