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. 21, 1978
Filed:
Dec. 17, 1975
Applicant:
Inventor:
Reinhard Pedrazzi, Basel, CH;
Assignee:
Fidelity Union Trust Company as Executive Trustee under the Sandoz Trust, Newark, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260143 ; 260169 ; 260205 ;
Abstract
Salts of stilbene-azo and stilbene-azoxy dyestuffs, and mixtures thereof in hich the cations are selected from tetra-alkylammonium, tetraalkylammonium in combination with lithium, sodium, potassium or ammonium, and ammonium in combination with lithium, sodium or potassium, have good cold water solubility relative to known salts of such dyes.