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. 10, 1984
Filed:
Jul. 01, 1981
Applicant:
Inventors:
Assignee:
Aktiebolaget Draco, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 66 ; 560 72 ; 560 85 ; 560 86 ; 424307 ; 424308 ;
Abstract
New bronchospasmolytically active compounds exhibiting long duration of action and reduced undesired side effects, of the structural formula ##STR1## and therapeutically acceptable salts thereof, in which formula R, R.sup.1 and R.sup.2 are as follows: