Patent US3288244A successfully refreshed from Google Patents.
US3288244A
Expired / Lapsed
US
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Seismic system
Assignee: ExxonMobil Upstream Research Co
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Filing: 1961-08-10
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Granted: 1966-11-29
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:01
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/147
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
AN APPARATUS FOR GENERATING A SEISMIC DISTURBANCE WHICH COMPRISES A VERTICALLY DISPOSED ENCLOSED HOUSING THE UPPER END OF SAID HOUSING HAVING AN ORIFICE TO PROVIDE FLUID COMMUNICATION THROUGH SAID UPPER END, A PISTON FITTED WITHIN AND ADAPTED TO MOVE UP AND DOWN WITHIN SAID HOUSING, A PISTON ROD CONNECTED AT ITS UPPER END TO SAID PISTON AND EXTENDING DOWNWARD IN A SLIDABLE, FLUIDTIGHT RELATIONSHIP THROUGH THE LOWER END OF SAID HOUSING THE INNER SURFACE OF SAID UPPER END OF SAID HOUSING AND THE UPPER END OF SAID PISTON ADAPTED UPON ENGAGEMENT WITH ONE ANOTHER TO FORM A RELEASABLE FLUID-TIGHT SEAL ABOUT SAID ORIFICE, A SOURCE OF HIGH PRESSURE GAS ADAPTED TO COMMUNICATE WITH THE INTERIOR OF SAID HOUSING THROUGH
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |