Granted Patent
Utility
US 4,489,459 · App. 06/515,624
Adjustable hinge construction including spring clips for prefab door and jamb assemblies
Inventor:
John J. Kempel
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Jul 20, 1983
Inventor
John J. Kempel
Assignee (at issue)
Garland Manufacturing Co.
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.