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:
Feb. 10, 1981
Filed:
Aug. 15, 1978
Applicant:
Inventors:
Gerhard Weckler, Sulzbach, DE;
Hans J Hauss, Frankfurt am Main, DE;
Karl Hintermeier, Frankfurt am Main, DE;
Friedrich Engelhardt, Frankfurt am Main, DE;
Assignee:
Cassella Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528295 ;
Abstract
Disclosed is a polycondensate of (a) water soluble or dispersible polyester having a molecular weight of 600-5000 prepared by reacting a carboxylic acid and a diol or polyol wherein 5-40 moles percent of the acid or hydroxy compounds contain sulfo substituents and (b) a compound of the formula
Weckler, Gerhard. (1981). Levelling agent and process for the even dyeing of materials made of (U.S. Patent No. 4250296). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4250296
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile