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. 29, 1985
Filed:
Jun. 07, 1982
Applicant:
Inventors:
Martin K Lindemann, Bridgewater, NJ (US);
Elvin R Lukenbach, Somerset, NJ (US);
Assignee:
Johnson & Johnson Baby Products Company, New Brunswick, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560147 ; 2604 / ; 562594 ;
Abstract
2,3-dimercaptosuccinic acid and esters thereof are prepared by reacting sodium thiosulfate with acetylene dicarboxylic acid in the presence of a strong acid and subjecting the resulting alkylthiosulfate to an acid hydrolysis. The 2,3-dimercaptosuccinic acids and esters thereof are useful as an antidote for heavy metal poisoning.