Granted Patent
Utility
US 4,404,261 · App. 06/310,555
Method of molding multi-ply polymeric composites including simultaneous curing of plural layers having different catalyst polymerization initiation temperatures and product thereof
Inventors:
John L. Canning, John F. Kay
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Oct 13, 1981
Inventors
John L. Canning
John F. Kay
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.