Granted Patent
Utility
US 4,907,773 · App. 07/232,199
Adjustable mounting surface
Inventors:
Robert J. Menchetti, Robert M. Chapman
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Aug 15, 1988
Inventors
Robert J. Menchetti
Robert M. Chapman
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.