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Joy Manufacturing Co

Joy Manufa
Active Patents
0
Total Holdings
19

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3412870A End-of-car hydraulic buff and draft cushioning Expired / Lapsed 1967-01-24 1968-11-26 0 Details
US3017228A Rotary supporting device Expired / Lapsed 1959-09-23 1962-01-16 0 Details
US2931313A Pump Expired / Lapsed 1955-06-24 1960-04-05 0 Details
US2807443A Percussive drill bit Expired / Lapsed 1953-11-02 1957-09-24 0 Details
US2697914A Releasable wedge type roof bolt Expired / Lapsed 1949-10-11 1954-12-28 0 Details
US2644669A Mobile drilling apparatus Expired / Lapsed 1950-01-20 1953-07-07 0 Details
US2562881A Hydraulically driven vehicle and cable reel motor control m… Expired / Lapsed 1945-02-15 1951-08-07 0 Details
US2546613A Controlling apparatus Expired / Lapsed 1946-07-01 1951-03-27 0 Details
US2488945A Fan and motor support Expired / Lapsed 1944-05-05 1949-11-22 0 Details
US2484848A Pressure controlling apparatus Expired / Lapsed 1942-12-14 1949-10-18 0 Details
US2484846A Pressure control device Expired / Lapsed 1942-05-18 1949-10-18 0 Details
US2477701A Variable feed for drilling apparatus Expired / Lapsed 1944-03-25 1949-08-02 0 Details
US2454363A Compressor control mechanism Expired / Lapsed 1944-12-09 1948-11-23 0 Details
US2444951A Cabin conditions controlling apparatus Expired / Lapsed 1943-04-09 1948-07-13 0 Details
US2427032A Fan and motor housing Expired / Lapsed 1943-09-01 1947-09-09 0 Details
US2425000A Apparatus for automatically controlling pressure and temper… Expired / Lapsed 1943-03-27 1947-08-05 0 Details
US2420159A Compressor unloader mechanism Expired / Lapsed 1943-12-30 1947-05-06 0 Details
US2410458A Drilling apparatus Expired / Lapsed 1945-01-09 1946-11-05 0 Details
US2358236A Mine vehicle Expired / Lapsed 1941-03-14 1944-09-12 0 Details