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Shawinigan Chemicals Ltd

Shawinigan
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3058940A Preparation of water-soluble polyethylene glycol copolymers… Expired / Lapsed 1959-05-22 1962-10-16 2 Details
US2459955A Polyvinyl acetate emulsion adhesive Expired / Lapsed 1945-11-09 1949-01-25 0 Details
US2388600A Polymerization in emulsion Expired / Lapsed 1942-09-04 1945-11-06 0 Details
US2388602A Polymerization of vinyl esters in emulsion Expired / Lapsed 1942-09-04 1945-11-06 0 Details
US2185786A Means for regulating electric steam generators Expired / Lapsed 1938-11-28 1940-01-02 0 Details
US2085490A Chewing gum composition Expired / Lapsed 1933-08-14 1937-06-29 0 Details