US3215202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-shore drilling and production apparatus
Assignee: Richfield Oil Corp
•
Filing: 1961-10-10
•
Granted: 1965-11-02
•
Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Robert O Pollard
- 👤 Jr Charles E Wakefield
- 👤 Paul R Rowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:07
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/0007; E21B41/0014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A DEVICE FOR GUIDING WELL APPARATUS TO A WELL LOCATED IN A FORMATION UNDERLYING A BODY OF WATER FROM A VESSEL POSITIONED ON THE SURFACE OF SAID BODY OF WATER COMPRISING: A COLLAR SLIDABLE ALONG A PORTION OF SAID WELL APPARATUS, MEANS AFFIXED TO SAID WELL APPARATUS NEAR THE LOWER END THEREOF FOR SUPPORTING SAID COLLAR WHEN SAID COLLAR IS IN LOWERED POSITION, CONTROLLABLE DRIVING MEANS AFFIXED TO SAID COLLAR AND ARRANGED TO MOVE THE LOWER END OF SAID WELL APPARATUS LATERALLY INTO
Claim 2
Independent Claim
83 words
A DEVICE FOR GUIDING WELL APPARATUS TO A WELL LOCATED IN A FORMATION UNDERLYING A BODY OF WATER FROM A VESSEL POSITIONED ON THE SURFACE OF SAID BODY OF WATER COMPRISING: A COLLAR SLIDABLE ALONG A PORTION OF SAID WELL APPARATUS, MEANS AFFIXED TO SAID WELL APPARATUS NEAR THE LOWER END THEREOF FOR SUPPORTING SAID COLLAR WHEN SAID COLLAR IS IN LOWERED POSITION, CONTROLLABLE DRIVING MEANS AFFIXED TO SAID COLLAR AND ARRANGED TO MOVE THE LOWER END OF SAID WELL APPARATUS LATERALLY INTO
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |