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. 02, 1993
Filed:
Jul. 29, 1992
Applicant:
Inventors:
Claudio Giordano, Monza, IT;
Maurizio Paiocchi, Milan, IT;
Assignee:
Zambon Group S.p.A., Vicenza, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562469 ;
Abstract
A crystallization process of crude 5-(2',4'-difluorophenyl)-salicylic acid from a mixture of an aromatic hydrocarbon and an aliphatic ketone for preparing 5-(2',4'-difluorophenyl)-salicylic acid in form II substantially pure is described.
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Giordano, Claudio. (1993). Process for the preparation of 5-(2',4'difluorophenyl)-salicylic acid in (U.S. Patent No. 5183935). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5183935
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