Granted Patent
Utility
US 4,295,016 · App. 06/103,532
Garage door lock
Inventor:
John CANTLIN
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Dec 14, 1979
Inventor
John CANTLIN
Assignee (at issue)
HUDSON LOCK, 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.