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:
Nov. 18, 1980
Filed:
Dec. 11, 1978
Applicant:
Inventors:
Istvan Hermecz, Budapest, HU;
Zoltan Meszaros, Budapest, HU;
Tibor Breining, Budapest, HU;
Sandor Virag, Budapest, HU;
Lelle V Vasvari nee Debreczy, Budapest, HU;
Agnes Horvath, Budapest, HU;
Gabor Nagy, Budapest, HU;
Attila Mandi, Budapest, HU;
Tamas Szucs, Budapest, HU;
Istvan Bitter, Budapest, HU;
Gyula Sebestyen, Budapest, HU;
Assignee:
Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt., Budapest, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424251 ; 42424853 ; 42424856 ; 542418 ; 542419 ; 542432 ; 542458 ; 544116 ; 544119 ; 544282 ;
Abstract
Antiallergic and particularly antiasthmatic compounds of the formula: ##STR1## of which 9-phenylhydrazono-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimi dine-3-carboxylic acid is an especially significant example.