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:
Aug. 02, 1977
Filed:
Nov. 12, 1975
Applicant:
Inventors:
Koichiro Ohtomo, Takatsuki, JA;
Taro Murata, Settsu, JA;
Assignee:
Kanebo, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract
A process for producing an anion-exchangeable nonhollow novolak filament which comprises treating a cured nonhollow novolak filament with an amination agent thereby introducing an anion-exchangeable group into the filament.
Ohtomo, Koichiro. (1977). Process for the production of anion-exchangeable nonhollow novolak (U.S. Patent No. 4039484). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4039484
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile