Granted Patent
Utility
US 4,680,903 · App. 06/862,994
Door shoe assembly
Inventor:
William J. Horgan, Jr.
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: May 14, 1986
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.