Granted Patent
Utility
US 5,072,488 · App. 07/494,141
Method and apparatus for mounting hinges to a door frame
Inventor:
Rodney W. Winyard
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Mar 14, 1990
Inventor
Rodney W. Winyard
Assignee (at issue)
Amweld Building Products, LLC
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.