Granted Patent
Utility
US 4,796,396 · App. 07/083,488
Integral wallboard and stud
Inventor:
Robert J. Menchetti
Patented Case
View Patent ↗
Granted: Jan 10, 1989
Filed: Aug 10, 1987
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.