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:
Jun. 26, 1979
Filed:
Sep. 05, 1978
Applicant:
Inventors:
Takao Hayashi, Fujimiya, JP;
Hajime Kato, Fujimiya, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ; C09C / ;
U.S. Cl.
CPC ...
1063 / ; 1062 / ; 282 275 ; 427150 ; 427151 ; 428307 ; 428914 ;
Abstract
A process for the production of a color developer comprising reacting an alkali metal salt of an aromatic carboxylic acid and a water-soluble metal salt in the presence of clay and a water-insoluble aluminum compound.
Hayashi, Takao. (1979). Process for production of color developer (U.S. Patent No. 4159208). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4159208
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile