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:
Mar. 06, 1984
Filed:
Mar. 27, 1981
Applicant:
Inventor:
Armand Squaratti, Brig, CH;
Assignee:
Lonza Ltd., Gampel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548164 ;
Abstract
Process for the production of 2-amino-4-methylbenzothiazole from o-tolylthiourea using chlorine as a ring closure reactant. The reaction is carried out without a catalyst. By the use of methylene chloride as a solvent, no ring chlorination takes place. The product is removed from the resultant HCl-salt form by treatment with sodium hydroxide solution.
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Squaratti, Armand. (1984). Process for the production of 2-amino-4-methyl-benzothiazole (U.S. Patent No. 4435576). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4435576
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile