Granted Patent
Utility
US 6,005,487 · App. 08/026,781
Electronic security system with novel electronic T-handle lock
Inventors:
Richard G. Hyatt, Jr., Charles E. Hall, Douglas E. Trent
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Mar 5, 1993
Inventors
Richard G. Hyatt, Jr.
Charles E. Hall
Douglas E. Trent
Assignee (at issue)
MEDECO SECURITY LOCKS, 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.