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:
Apr. 07, 1981
Filed:
Dec. 11, 1978
Applicant:
Inventors:
Istvan Hermecz, Budapest, HU;
Zoltan Meszaros, Budapest, HU;
Tibor Breining, Budapest, HU;
Sandor Virag, Budapest, HU;
Lelle Vasvari nee Debreczi, Budapest, HU;
Agnes Horvath, Budapest, HU;
Gabor Nagy, Budapest, HU;
Attila Mandi, Budapest, HU;
Tamas Szuts, Budapest, HU;
Istvan Bitteer, Budapest, HU;
Gyula Sebestyen, Budapest, HU;
Assignee:
Chinoin Gyogyszer es Vecyeszeti Termekek Gyara Rt., Budapest, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424251 ; 542422 ; 542439 ; 544116 ; 544119 ; 544252 ; 544282 ; 42424853 ; 42424856 ;
Abstract
Antiallergic and antiasthmatic compounds of the formula ##STR1## of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3-carb oxylic acid and optically active antipodes and salts thereof are examples.