Granted Patent
Utility
US 4,356,237 · App. 06/149,357
Porous encapsulating composition for electrical apparatus
Inventors:
Gerhard R. Sprengling, Louis A. Cargnel
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: May 13, 1980
Inventors
Gerhard R. Sprengling
Louis A. Cargnel
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.