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. 04, 1980
Filed:
Apr. 12, 1977
Applicant:
Inventors:
Assignee:
Lonza Ltd., Gampel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034676 ;
Abstract
A process for obtaining maleic acid anhydride from an aqueous maleic acid solution obtained from the gas phase oxidation of at least one organic compound having at least 4 carbon atoms by washing out the reaction gases with water, characterized in that a H.sub.2 O exchange is carried out between maleic acid and an organic carboxylic acid anhydride.
Quick Actions:
Neri, Amleto. (1980). Process for obtaining maleic acid anhydride (U.S. Patent No. 4191695). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4191695
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile