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. 18, 1996
Filed:
Jan. 12, 1995
Applicant:
Inventors:
Assignee:
Allied Industrial Corp., Ltd., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ;
U.S. Cl.
CPC ...
534763 ; 8531 ; 8681 ; 8917 ; 8924 ;
Abstract
Disazo acid dyestuff with the following general formula: ##STR1## wherein R represents H, C.sub.n H.sub.2n+1 wherein n is a natural number between 1 and 4, or (CH.sub.2).sub.m OR' wherein m is a natural number between 1 and 4 and R' represents C.sub.p H.sub.2p+1 wherein p is an integral number between 0 and 4; wherein R' represents H, CN or COOR wherein R has the same definition as above. The sulfo group may be at any position of the benzene ring.
Tsien, Hsien-Chyang. (1996). Disazo acid dyestuffs for polyamide fibers applicable in neutral solution (U.S. Patent No. 5527887). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5527887
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile