Granted Patent
Utility
US 4,506,922 · App. 06/532,215
Panic handle for doors
Inventor:
William J. Horgan, Jr.
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Sep 14, 1983
Inventor
William J. Horgan, Jr.
Assignee (at issue)
Blumcraft of Pittsburgh
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.