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CHEMISCHE FORSCHUNGS GmbH

CHEMISCHE
Active Patents
0
Total Holdings
12

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
GB490432A Manufacture of pharmaceutical products for counteracting ha… Expired / Lapsed 1937-02-13 — 0 Details
US2279436A Process for polymerizing vinyl compounds Expired / Lapsed 1936-01-13 1942-04-14 0 Details
US2265283A Process of making polymerized vinyl alcohol articles Expired / Lapsed 1935-11-21 1941-12-09 0 Details
US2224663A Mixed polymers of vinyl acetals Expired / Lapsed 1937-12-01 1940-12-10 0 Details
US2155658A Surgical and medical preparations Expired / Lapsed 1936-12-29 1939-04-25 0 Details
US2146295A Polymerized vinyl alcohol articles and process of making sa… Expired / Lapsed 1935-12-21 1939-02-07 0 Details
US2135075A Laminated glass Expired / Lapsed 1936-05-13 1938-11-01 0 Details
US2125374A Polymerized vinyl compounds Expired / Lapsed 1936-05-13 1938-08-02 0 Details
US2092512A Reabsorbable threads, bands, tubes, and the like Expired / Lapsed 1933-10-14 1937-09-07 0 Details
US2072303A Artificial threads, bands, tubes, and the like for surgical… Expired / Lapsed 1933-10-14 1937-03-02 0 Details
US2072302A Polymerized vinyl alcohol articles and processes of making … Expired / Lapsed 1932-03-03 1937-03-02 0 Details
US1997489A Plastic masses containing alcohol soluble polymerized vinyl… Expired / Lapsed 1932-08-23 1935-04-09 0 Details