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MACCLATCHIE Manufacturing Co

MACCLATCHI

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2888238A	Pump valves	Expired / Lapsed	1954-11-18	1959-05-26	0	Details
US2309211A	Rotatable dial for determining amount of weight on formation	Expired / Lapsed	1939-07-04	1943-01-26	0	Details
US2159540A	Blowout preventer	Expired / Lapsed	1936-01-28	1939-05-23	0	Details
US2148850A	Mud pump valve	Expired / Lapsed	1931-12-19	1939-02-28	0	Details
US2112592A	Valve	Expired / Lapsed	1935-03-05	1938-03-29	0	Details