Granted Patent
Utility
US 4,111,824 · App. 05/817,693
Liquid dielectric composition based on a fraction derived from the alkylation product of benzene with ethylene
Inventors:
Johann G. D. Schulz, Charles M. Selwitz, Anatoli Onopchenko
Patented Case
View Patent ↗
Granted: Sep 5, 1978
Filed: Jul 21, 1977
Inventors
Johann G. D. Schulz
Charles M. Selwitz
Anatoli Onopchenko
Assignee (at issue)
Gulf Research & Development Company
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.