Granted Patent
Utility
US 4,299,713 · App. 06/161,932
Electrical tree and water tree resistant polymer compositions
Inventors:
Melvin F. Maringer, Anthony Barlow
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Jun 23, 1980
Inventors
Melvin F. Maringer
Anthony Barlow
Assignee (at issue)
National Distillers and Chemical Corporation
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.