Patent US3185505A successfully refreshed from Google Patents.
US3185505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual suspension and seal
Assignee: Smith International Inc
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Filing: 1961-03-24
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Granted: 1965-05-25
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Ii C P Lanmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:47
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047; F; F16; F16L; F16L39/00; E21B2200/00; E21B2200/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
244 words
WELL COMPLETION APPARATUS, COMPRISING A WELL HEAD HAVING A VERTICAL OPENING THERETHROUGH, A SEAT AROUND THE SIDES OF SAID OPENING FOR SUPPORTING AN INTERMEDIATE HANGER, AN INTERMEDIATE HANGER DISPOSED IN SAID VERTICAL OPENING AND SUPPORTED ON SAID SEAT, SAID INTERMEDIATE HANGER HAVING A PAIR OF VERTICAL SIDE-BY-SIDE TUBING PASSAGES THERETHROUGH AND HAVING A VERTICAL SPLIT THEREACROSS THROUGH SAID TUBING PASSAGEW EHEREBY SAID INTERMEDIATE HANGER MAY BE PLACED ABOUT A PAIR OF TUBING STRINGS HAVING OUTWARDLY UPSET UPPER ENDS WITH SAID TUBING STRINGS IN SAID TUBING PASSAGES FROM LATERALLY OF SAID TUBING STRINGS DISPOSED PARALLEL SIDE-BY-SIDE IN A WELL WHEREBY SAID TUBING STRINGS MAY BE LOWERED TO REST SAID UPSET UPPER ENDS OF THE TUBING STRINGS ON SAID INTERMEDIATE HANGER, HANGER BODY HAVING VERTICAL BORES THEREIN ADAPTED TO AXIALLY ALIGN WITH SAID TUBING PASSAGES SUPPORTED UPON SAID WELL HEAD AND ONE OF SAID VERTICAL BORES BEING ADAPTED FOR DIRECT CONNECTION WITH ONE OF SAID TUBING STRINGS AND THE OTHER OF SAID VERTICAL BORES BEING ADAPTED FOR INDIRECT CONNECTION TO THE OTHER OF SAID TUBING STRINGS WHEREBY ONE OF SAID TUBING STRINGS MAY BE LIFTED TO ELEVATE ITS UPSET UPPER END FROM ITS POSITION OF REST ON SAID INTERMEDIATE HANGER AND TO DIRECTLY CONNECT SAID HANGER BODY THERETO AFTER WHICH THE OTHER TUBING STRING MAY BE LIFTED THROUGH ITS RELATED BORE TO ELEVATE ITS UPSET UPPER END FROM ITS POSITION OF REST ON SAID INTERMEDIATE HANGER AND TO BE THEREAFTER INDIRECTLY CONNECTED TO SAID HANGER BODY.
Claim 2
Dependent Claim
244 words
WELL COMPLETION APPARATUS, COMPRISING A WELL HEAD HAVING A VERTICAL OPENING THERETHROUGH, A SEAT AROUND THE SIDES OF SAID OPENING FOR SUPPORTING AN INTERMEDIATE HANGER, AN INTERMEDIATE HANGER DISPOSED IN SAID VERTICAL OPENING AND SUPPORTED ON SAID SEAT, SAID INTERMEDIATE HANGER HAVING A PAIR OF VERTICAL SIDE-BY-SIDE TUBING PASSAGES THERETHROUGH AND HAVING A VERTICAL SPLIT THEREACROSS THROUGH SAID TUBING PASSAGEW EHEREBY SAID INTERMEDIATE HANGER MAY BE PLACED ABOUT A PAIR OF TUBING STRINGS HAVING OUTWARDLY UPSET UPPER ENDS WITH SAID TUBING STRINGS IN SAID TUBING PASSAGES FROM LATERALLY OF SAID TUBING STRINGS DISPOSED PARALLEL SIDE-BY-SIDE IN A WELL WHEREBY SAID TUBING STRINGS MAY BE LOWERED TO REST SAID UPSET UPPER ENDS OF THE TUBING STRINGS ON SAID INTERMEDIATE HANGER, HANGER BODY HAVING VERTICAL BORES THEREIN ADAPTED TO AXIALLY ALIGN WITH SAID TUBING PASSAGES SUPPORTED UPON SAID WELL HEAD AND ONE OF SAID VERTICAL BORES BEING ADAPTED FOR DIRECT CONNECTION WITH ONE OF SAID TUBING STRINGS AND THE OTHER OF SAID VERTICAL BORES BEING ADAPTED FOR INDIRECT CONNECTION TO THE OTHER OF SAID TUBING STRINGS WHEREBY ONE OF SAID TUBING STRINGS MAY BE LIFTED TO ELEVATE ITS UPSET UPPER END FROM ITS POSITION OF REST ON SAID INTERMEDIATE HANGER AND TO DIRECTLY CONNECT SAID HANGER BODY THERETO AFTER WHICH THE OTHER TUBING STRING MAY BE LIFTED THROUGH ITS RELATED BORE TO ELEVATE ITS UPSET UPPER END FROM ITS POSITION OF REST ON SAID INTERMEDIATE HANGER AND TO BE THEREAFTER INDIRECTLY CONNECTED TO SAID HANGER BODY.
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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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |