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Griscom Russell Co

Griscom Ru
Active Patents
0
Total Holdings
7

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2996600A Method of welding tubular heat exchanger parts Expired / Lapsed 1957-03-28 1961-08-15 0 Details
US2923640A Method of applying a plastic coating Expired / Lapsed 1956-03-29 1960-02-02 1 Details
US2766903A Head closure construction for heat exchangers Expired / Lapsed 1953-02-17 1956-10-16 0 Details
US2590465A Heat exchanger Expired / Lapsed 1944-11-14 1952-03-25 0 Details
US2273257A Evaporation of liquefied gases Expired / Lapsed 1940-07-15 1942-02-17 0 Details
US2004389A Manufacture of finned tubing Expired / Lapsed 1933-05-22 1935-06-11 0 Details
US1920800A Heat exchanger Expired / Lapsed 1931-08-07 1933-08-01 0 Details