The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 1987
Filed:
Nov. 06, 1985
Applicant:
Inventors:
Atsushi Sato, Tokyo, JP;
Keiji Endo, Yokosuka, JP;
Shigenobu Kawakami, Ichikawa, JP;
Hitoshi Yanagishita, Yokohama, JP;
Shozo Hayashi, Yokohama, JP;
Assignee:
Nippon Petrochemicals Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
585-63 ; 585-66 ; 585436 ; 585400 ; 585444 ; 252570 ;
Abstract
A novel method for improving electrical insulating hydrocarbon. The electrical insulating substance is obtained by dehydrogenating aromatic hydrocarbons having two aromatic nuclei. The electrical insulating substance itself or a mixture of it with other electrical insulating oils is suitable for use in impregnation of electrical appliances.