← Back to Companies

Mandrel Industries Inc

Mandrel In

Active Patents

0

Total Holdings

5

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3601216A	System for suppressing multiple pulse in marine seismic sou…	Expired / Lapsed	1967-10-23	1971-08-24	8	Details
US3058588A	Internal ejection apparatus	Expired / Lapsed	1959-09-21	1962-10-16	0	Details
US2966264A	Sorting apparatus	Expired / Lapsed	1954-12-03	1960-12-27	0	Details
US2888635A	Stick force transducer	Expired / Lapsed	1957-06-26	1959-05-26	0	Details
US2833937A	Compensator, regulator, and two-point compensator-regulator…	Expired / Lapsed	1952-06-19	1958-05-06	0	Details