Granted Patent
Utility
US 4,885,883 · App. 07/163,187
Two-by-four corner members
Inventor:
Robert Wright
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Feb 25, 1988
Inventor
Robert Wright
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.