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. 26, 1988
Filed:
Oct. 03, 1986
Applicant:
Inventors:
Seiji Ishikawa, Chiba, JP;
Shuuichi Hirano, Ichihara, JP;
Yukio Matsumoto, Ichihara, JP;
Tutomu Kaibara, Urawa, JP;
Kenji Sugiyama, Ube, JP;
Takuo Morishige, Onoda, JP;
Assignees:
Ube Industries, Ltd., Yamaguchi, JP;
Seibu Oil Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10C / ; C10C / ;
U.S. Cl.
CPC ...
208 40 ; 208 39 ; 208 44 ; 4234472 ; 4234479 ;
Abstract
A process for producing a pitch useful as a raw material for carbon fibers, which comprises