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:
Jul. 22, 1980
Filed:
Nov. 20, 1978
Applicant:
Inventors:
Denis R Ridyard, Manchester, GB;
Charles W Taylor, Manchester, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ;
U.S. Cl.
CPC ...
8643 ; 8676 ; 8531 ;
Abstract
Differential-dyeing nylon fibres are dyed or printed with a mixture of compatible dyes selected from spcified classes of yellow, orange, red and blue disulphonated or monosulphonated/monocarboxylated monoazo, disazo and anthraquinone dyes.
Ridyard, Denis. (1980). Coloration process: mixed dyes for differential-dyeing nylon mixtures (U.S. Patent No. 4213759). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4213759
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile