Granted Patent
Utility
US 6,263,638 · App. 09/334,826
Insulated integral concrete wall forming system
Inventor:
Robert Long
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Jun 17, 1999
Inventor
Robert Long
Assignee (at issue)
Composite Technologies, LLC
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.