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:
Nov. 08, 1977
Filed:
Apr. 06, 1976
Applicant:
Inventors:
Erich Feess, Lorsbach, Taunus, DT;
Willy Gronen, Kelkheim, Taunus, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
8 71 ; 8 44 ; 8 46 ; 8 542 ; 8 62 ; 8 70 ; 8 92 ;
Abstract
Cellulosic material is printed with a paste containing the alkaline solution of a coupler, the dispersion of a diazotable aromatic amine, a nitrite and a thickener, and the dyestuff is developed on the fiber by adding solutions of organic acids and, after a short air passage, contacting the dyeing or print with an alkaline agent.
Quick Actions:
Feess, Erich. (1977). Process for the printing with developing dyes (U.S. Patent No. 4057389). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4057389
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile