Granted Patent
Utility
US 5,630,459 · App. 08/401,562
Shield apparatus and method for sectional door hinge
Inventor:
David Martin
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Mar 9, 1995
Inventor
David Martin
Assignee (at issue)
Martin Door Manufacturing, 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.