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:
Apr. 20, 1976
Filed:
Jul. 12, 1974
Applicant:
Inventors:
Tamotsu Fujisawa, Yamato, JA;
Mitsuko Ambe, Tokyo, JA;
Norio Kobayashi, Sagamihara, JA;
Akiko Osawa, Sagamihara, JA;
Kiwako Shimizu, Hachioji, JA;
Assignee:
Sagami Chemical Research Center, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02B / ;
U.S. Cl.
CPC ...
210 / ; 55 72 ;
Abstract
A polymeric compound having thiuram mono- or poly-sulfide linkage shows noteworthy property for removing and collecting heavy metals from the environment. Especially, said compound can remove mercury, in any form, from the environment effectively. On the other hand, said compound shows ability to selectively recover some kinds of heavy metals by the selection of appropriate conditions.
Fujisawa, Tamotsu. (1976). Thiuram polysulfide heavy metal remover (U.S. Patent No. 3951790). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3951790
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile