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. 01, 1977
Filed:
Sep. 24, 1975
Applicant:
Inventors:
Horst Koenig, Ludwigshafen, DT;
Ulrich Ohnsorge, Ludwigshafen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ;
Abstract
A process for the manufacture of thiophen-3-aldehyde, in which a 2,5-dialkoxy-3-formyl-tetrahydrofuran is reacted with hydrogen sulfide in the presence of a strong acid, at temperatures of from 50.degree. to 320.degree. C.
Koenig, Horst. (1977). Manufacture of thiophen-3-aldehyde (U.S. Patent No. 4010165). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4010165
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile