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:
Jul. 15, 1980
Filed:
Jun. 05, 1979
Applicant:
Inventor:
Hachiro Yamaguchi, Hiroshima, JP;
Assignee:
Wakunaga Yakuhin Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Specific cysteamines and/or cystamines are produced by a process which comprises causing (A) an aminoalkyl sulfate ester and (B) hydrogen sulfide and an alkali polysulfide formed from an alkali hydrogen sulfide and sulfur to react.