Granted Patent
Utility
US 4,936,067 · App. 07/367,176
Stud extender interlock and method of erection
Inventor:
Robert J. Menchetti
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Jun 16, 1989
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.