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. 26, 1991
Filed:
Nov. 13, 1989
Applicant:
Inventor:
Hans Morawietz, Seewen, CH;
Assignee:
Ciba-Geigy Corp., Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
8527 ; 8604 ; 8684 ; 8689 ; 8691 ; 8918 ; 8919 ;
Abstract
Concentrated dye solutions of the formula (1) shown in claim 1 are described. The dye solutions are notable for a long shelf life and are suitable in particular for dyeing paper.
Morawietz, Hans. (1991). Concentrated aqueous dye solutions for dyeing paper (U.S. Patent No. 4995885). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4995885
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile