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. 07, 1977
Filed:
Jul. 18, 1975
Applicant:
Inventor:
Dale W Blackburn, Moorestown, NJ (US);
Assignee:
SmithKline Corporation, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 424246 ;
Abstract
A process for purifying semisynthetic cephalosporins is disclosed which uses alumina and/or a polymeric nonionic resin as adsorbents at a controlled pH. The process is more efficient than previously used methods.
Blackburn, Dale. (1977). Cephalosporin purification process (U.S. Patent No. 4028355). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4028355
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile