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. 24, 2004
Filed:
Aug. 20, 2002
Applicant:
Inventors:
Stephen M. Birkinshaw, Collingham, GB;
Samit N. Chevli, Wilmington, DE (US);
Michael O. Hunt, Jr., Wilmington, DE (US);
Lee D. Jones, Pontefract, GB;
David M. Lewis, Otley, GB;
David J. Marfell, Moreton-In-Marsh, GB;
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P 1/22 ;
U.S. Cl.
CPC ...
D06P 1/22 ;
Abstract
A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as &agr;-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
Birkinshaw, Stephen. (2004). Vat acid dyeing of textile fibers (U.S. Patent No. 6780205). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6780205
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile