Granted Patent
Utility
US 5,421,178 · App. 08/005,625
Motorized lock actuator for cylindrical lockset
Inventors:
Lyn E. Hamel, Charles T. Weindorf, Jr.
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Jan 19, 1993
Inventors
Lyn E. Hamel
Charles T. Weindorf, Jr.
Assignee (at issue)
Best Lock Corporation
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.