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:
Jun. 30, 2009
Filed:
Apr. 13, 2006
Applicants:
Dayton T. Reardan, Shorewood, MN (US);
Michel D. Combe, Fox Point, WI (US);
Inventors:
Dayton T. Reardan, Shorewood, MN (US);
Michel D. Combe, Fox Point, WI (US);
Assignee:
Paladin Labs (Barbados) Inc., Barbados, BB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/415 (2006.01); C07D 231/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is an ultrapure 4-methylpyrazole containing less than 0.1% pyrazole and containing less than 10 ppm each of hydrazine and nitrobenzaldehyde. The ultrapure 4-methylpyrazole is prepared by a novel process so that less than 0.01% of ethylvinyl ether is present.