Granted Patent
Utility
US 4,267,679 · App. 06/013,910
Insulated building panel wall construction
Inventor:
Leroy J. Thompson
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Feb 22, 1979
Inventor
Leroy J. Thompson
Assignee (at issue)
Steelite, 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.