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.:

US 4158670 B1

Date of Patent:

Jun. 19, 1979

Filed:

Feb. 22, 1978

Process for the manufacture of aromatic sulphonic acid esters of

Applicant:

Inventors:

Rolf Muller, Karben, DE;

Joachim Ribka, Offenbach am Main, DE;

Horst Tappe, Dietzenbach, DE;

Assignee:

Cassella Aktiengesellschaft, Frankfurt, DE;

Attorney:

Connolly and Hutz

Primary Examiner:

Nicky Chan

Int. Cl.

CPC ...

C07C / ;

U.S. Cl.

CPC ...

2604 / ;

Abstract

A process for the manufacture of esters of aromatic sulphonic acids and aromatic aminohydroxy compounds, of the formula I

Find Patent Forward Citations

Muller, Rolf. (1979). Process for the manufacture of aromatic sulphonic acid esters of (U.S. Patent No. 4158670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4158670

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