Granted Patent
Utility
US 4,522,004 · App. 06/505,145
Insulated wall construction
Inventors:
Michael E. Evans, Bradley W. Oberg
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Jun 16, 1983
Inventors
Michael E. Evans
Bradley W. Oberg
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.