Granted Patent
Utility
US 4,472,918 · App. 06/262,240
Concealed fastener receiver
Inventor:
Theodore E. Mach
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: May 11, 1981
Inventor
Theodore E. Mach
Assignee (at issue)
Allen Industries, Inc.
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.