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:
Jun. 18, 1985
Filed:
Sep. 14, 1983
Applicant:
Inventor:
Hans-Georg Schmidt, Niederkassel, DE;
Assignee:
Dynamit Nobel AG, Cologne, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 70 ;
Abstract
Resorcinols of the structure of p-orsellinic acid ester are obtained from pyrones of the formula ##STR1## by the action of no more than catalytic amounts of bases.