Granted Patent
Utility
US 4,327,143 · App. 06/228,016
Moisture resistant laminates impregnated with an impregnating composition comprising epoxy resin and a dicyandiamide derivative
Inventors:
William M. Alvino, Janet L. Hammill, Martin Seidel
Patented Case
View Patent ↗
Granted: Apr 27, 1982
Filed: Jan 23, 1981
Inventors
William M. Alvino
Janet L. Hammill
Martin Seidel
Assignee (at issue)
Westinghouse Electric Company 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.