Granted Patent
Utility
US 5,107,651 · App. 07/718,480
Method of mounting wallboard
Inventors:
Robert J. Menchetti, Robert M. Chapman, Matthew J. Kessler
Patented Case
View Patent ↗
Granted: Apr 28, 1992
Filed: Jun 21, 1991
Inventors
Robert J. Menchetti
Robert M. Chapman
Matthew J. Kessler
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.