Granted Patent
Utility
US 4,828,122 · App. 07/154,414
Hangrod system
Inventor:
Joel Day
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Feb 10, 1988
Inventor
Joel Day
Assignee (at issue)
Capitol Hardware Manufacturing Co., 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.