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Nopco Chemical Co

Nopco Chem
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3489723A Two-component castable polyurethane elastomer composition a… Expired / Lapsed 1966-12-06 1970-01-13 0 Details
US3317480A Adducts of isocyanates and aromatic anhydride carboxylic ac… Expired / Lapsed 1963-06-07 1967-05-02 4 Details
US3304286A Polyester-polyisocyanate materials and coatings obtained th… Expired / Lapsed 1963-01-29 1967-02-14 4 Details
US3063781A Method for tanning leather with aminoplasts and composition… Expired / Lapsed 1959-10-29 1962-11-13 2 Details
US2487899A Process of wax sizing papermaking fibers using a cationic s… Expired / Lapsed 1945-05-10 1949-11-15 0 Details
US2442143A Synthesis of pantothenic acid and its salts Expired / Lapsed 1941-06-06 1948-05-25 0 Details