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:
May. 06, 1980
Filed:
Jan. 04, 1979
Applicant:
Inventors:
Takayuki Naito, Kawasaki, JP;
Susumu Nakagawa, Tokyo, JP;
Tetsuro Yamasaki, Ichikawa, JP;
Taka-aki Okita, Ichikawa, JP;
Haruhiro Yamashita, Tokyo, JP;
Assignee:
Bristol-Myers Company, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544277 ; 424253 ; 544276 ;
Abstract
Purine derivatives of the formula ##STR1## wherein R is C.sub.1 -C.sub.6 alkyl and R.sub.1 is ##STR2## and their pharmaceutically acceptable acid addition salts are non-adrenergic bronchodilators.
Naito, Takayuki. (1980). Purine derivatives (U.S. Patent No. 4201860). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4201860
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile