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:
Oct. 06, 1981
Filed:
Apr. 25, 1980
Applicant:
Inventors:
Hugh Cairns, Loughborough, GB;
Thomas B Lee, Loughborough, GB;
Assignee:
Fisons Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; A61L / ;
U.S. Cl.
CPC ...
424 45 ; 2603452 ; 424283 ;
Abstract
There is described a salt of 2,8-dicarboxy-4,6-dioxo-10-propyl-4H,6H-benzo(1,2-b:5,4-b')dipyran with a pharmaceutically acceptable organic cation, the salt having a solubility of less than 31 w/w in water a 20.5.degree. C. There are also described processes for making the salts and pharmaceutical, e.g. anti-allergic, compositions containing them.