Granted Patent
Utility
US 5,724,784 · App. 08/385,673
Shaft wall and horizontal metal stud therefor
Inventor:
Robert J. Menchetti
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Feb 8, 1995
Inventor
Robert J. Menchetti
Assignee (at issue)
National Gypsum Company
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.