Granted Patent
Utility
US 4,484,463 · App. 06/423,827
Door lock guard
Inventor:
Thomas Hennessy
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Sep 27, 1982
Inventor
Thomas Hennessy
Assignee (at issue)
Lori 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.