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:
Sep. 04, 1990
Filed:
Aug. 24, 1988
Applicant:
Inventor:
Kiyotaka Imagawa, Osaka, JP;
Assignee:
Sakura Color Products Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; C09K / ;
U.S. Cl.
CPC ...
106 27 ; 106 30 ; 106 32 ; 106 325 ;
Abstract
An erasable ink composition for use in writing with a marking pen which comprises an organic solvent, optionally a resin soluble in the solvent, a pigment dispersed in the solvent and additives, the improvement in the additives comprising:
Imagawa, Kiyotaka. (1990). Erasable ink compositions (U.S. Patent No. 4954174). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4954174
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile