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:
Sep. 14, 1976
Filed:
Oct. 31, 1973
Applicant:
Inventors:
Sergio Fabbri, Basel, CH;
Josef Frauenknecht, Therwil, CH;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
8 92 ; 8 93 ; 8173 ; 8177 / ;
Abstract
The present invention relates to a process for dyeing or printing organic substrates in the presence of lactone, the amount of which is sufficient to adjust the pH value of the dyeing or printing medium from a neutral or basic value to a value from 4.0 to 6.5.
Fabbri, Sergio. (1976). Dyeing process (U.S. Patent No. 3980428). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3980428
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile