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C H Dexter & Sons Inc

C H Dexter
Active Patents
0
Total Holdings
7

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3253978A Method of forming an inorganic waterlaid sheet containing c… Expired / Lapsed 1964-08-31 1966-05-31 2 Details
US3149023A Carbon-filled sheet and method for its manufacture Expired / Lapsed 1961-07-19 1964-09-15 2 Details
US2626214A Paper from long synthetic fibers and partially water solubl… Expired / Lapsed 1949-06-14 1953-01-20 2 Details
US2477000A Synthetic fiber paper Expired / Lapsed 1946-08-22 1949-07-26 0 Details
US2414833A Thermoplastic paper and process of preparing the same Expired / Lapsed 1944-05-09 1947-01-28 0 Details
US2336367A Paper and process for preparing the same Expired / Lapsed 1942-12-21 1943-12-07 0 Details
US2045095A Process of making porous long fibered nonhydrated paper Expired / Lapsed 1934-07-21 1936-06-23 0 Details