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Union Tank Car Co

Union Tank
Active Patents
0
Total Holdings
8

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3585894A Self-drilling and tapping screw with lead unit Expired / Lapsed 1969-06-02 1971-06-22 6 Details
US3342334A Filter and scouring gas blower system Expired / Lapsed 1964-05-27 1967-09-19 2 Details
US3260366A Filter Expired / Lapsed 1963-10-30 1966-07-12 2 Details
US3250704A Method for removing impurities from water streams Expired / Lapsed 1963-11-12 1966-05-10 2 Details
US3250705A Method of removing impurities from water at elevated temper… Expired / Lapsed 1963-03-08 1966-05-10 2 Details
US3250703A Process and apparatus for removing impurities from liquids Expired / Lapsed 1963-03-08 1966-05-10 2 Details
US3193099A Monovalve filter Expired / Lapsed 1961-08-30 1965-07-06 1 Details
US2944405A Conservation arrangement Expired / Lapsed 1955-10-27 1960-07-12 0 Details