Patent US3221816A successfully refreshed from Google Patents.
US3221816A
Expired / Lapsed
US
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Underwater oil gathering installation
Assignee: Shell USA Inc
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Filing: 1961-12-07
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Granted: 1965-12-07
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Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard L Shatto
- 👤 Bruce J Watkins
- 👤 Dozier James Ronald
- 👤 Bill L Faulk
- 👤 Benjamin L Goepfert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:38
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; E21B43/36; B; B63; B63B; B63B21/00; B63B21/50; B65; B65D; B65D88/00; B65D88/78; E21B43/01; E21B43/017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SYSTEM FOR GATHERING PRODUCTION FLUID FROM UNDERWATER WELLS AND TRANSFERRING AT LEAST THE OIL PORTION OF SAID PRODUCTION FLUID TO REMOTE OIL HANDLING FACILITIES, SAID SYSTEM COMPRISING IN COMBINATION WITH AT LEAST ONE WELL ASSEMBLY AFFIXED TO THE OCEAN FLOOR, AN OIL AND GAS HANDLING VESSEL BUOYANTLY POSITIONED IN A BODY OF WATER, RESILIENT ANCHORING MEANS RESILIENTLY POSITIONING SAID VESSEL AT A SELECTED DEPTH IN SAID BODY OF WATER, FLUID INTAKE CONDUIT MEANS CONNECTING EACH WELL ASSEMBLY WITH SAID VESSEL FOR DELIVERY WELL FLUID INTO SAID VESSEL, FLUID TRANSFER MEANS
Claim 2
Independent Claim
91 words
A SYSTEM FOR GATHERING PRODUCTION FLUID FROM UNDERWATER WELLS AND TRANSFERRING AT LEAST THE OIL PORTION OF SAID PRODUCTION FLUID TO REMOTE OIL HANDLING FACILITIES, SAID SYSTEM COMPRISING IN COMBINATION WITH AT LEAST ONE WELL ASSEMBLY AFFIXED TO THE OCEAN FLOOR, AN OIL AND GAS HANDLING VESSEL BUOYANTLY POSITIONED IN A BODY OF WATER, RESILIENT ANCHORING MEANS RESILIENTLY POSITIONING SAID VESSEL AT A SELECTED DEPTH IN SAID BODY OF WATER, FLUID INTAKE CONDUIT MEANS CONNECTING EACH WELL ASSEMBLY WITH SAID VESSEL FOR DELIVERY WELL FLUID INTO SAID VESSEL, FLUID TRANSFER MEANS
References Cited (Backward Citations)
US1176526A
Cited
US1157902A
Cited
US2594105A
Cited
US2748739A
Cited
US2783970A
Cited
US2970646A
Cited
US3063507A
Cited
US3064735A
Cited
US3111692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |