Granted Patent
Utility
US 4,628,653 · App. 06/576,544
Insulated concrete panel
Inventor:
Richard C. Nash
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Feb 3, 1984
Inventor
Richard C. Nash
Assignee (at issue)
FABCON, 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.