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:
Mar. 12, 1985
Filed:
Sep. 29, 1983
Applicant:
Inventors:
Hideki Kuwabara, Hatano, JP;
Shohei Yoshimura, Tomioka, JP;
Toru Yamaguchi, Hiratsuka, JP;
Yoshimi Sudo, Fujisawa, JP;
Assignee:
Japan Styrene Paper Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 58 ; 264 53 ; 264D / ; 521 56 ; 521 60 ; 521143 ; 521144 ;
Abstract
A process for producing pre-foamed particles of a polypropylene resin which comprises expanding original pre-foamed particles of a polypropylene resin, said original pre-foamed particles having the following relation
Kuwabara, Hideki. (1985). Process for producing pre-foamed particles of polypropylene resin (U.S. Patent No. 4504601). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4504601
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile