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UNITED GEOPHYSICAL Co Inc

UNITED GEO

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2559023A	Phase modulation	Expired / Lapsed	1949-02-21	1951-07-03	0	Details
US2449085A	Submersible seismometer system	Expired / Lapsed	1944-12-12	1948-09-14	0	Details
US2430983A	Seismic amplifying system	Expired / Lapsed	1941-11-24	1947-11-18	0	Details
US2417077A	Seismometer	Expired / Lapsed	1942-10-13	1947-03-11	0	Details