Patent US3191684A successfully refreshed from Google Patents.
US3191684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing hold-down tool
Assignee: Halliburton Co
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Filing: 1962-01-08
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Granted: 1965-06-29
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Expires: 1982-01-08
Abstract
No abstract record available.
Inventors
- 👤 Forrest C Pittman
- 👤 Orum E Seay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:19
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A TOOL FOR ROTATABLY SUPPORTING TUBING IN A WELL CASING, THE COMBINATION OF: A MANDREL HAVING MEANS FOR ATTACHING TO THE TUBING, FIRST MEANS SLIDABLY AND ROTATABLY MOUNTED ON SAID MANDREL, SECOND MEANS SLIDABLY AND ROTABABLY MOUNTED ON SAID MANDREL, MEANS ON SAID FIRST MEANS FOR REISLIENTLY ENGAGING THE CASING AND FRICTIONALLY RESISTING MOVEMENT OF SAID FIRST MEANS RELATIVE TO THE CASING, MEANS ON SAID MANDREL AND FIRST MEANS FOR SELECTIVELY AND RELEASABLY INTERCONNECTING AND LOCKING SAID FIRST MEANS TO SAID MANDREL, CASING ENGAGING MEANS MOUNTED ON SAID SECOND MEANS FOR MOVEMENT TOWARD AND AWAY FROM THE CASING UPON AXIAL MOVEMENT OF SAID CASING ENGAGING MEANS RELATIVE TO SAID SECOND MEANS, MEANS INTERCONNECTING SAID
Claim 2
Dependent Claim
115 words
IN A TOOL FOR ROTATABLY SUPPORTING TUBING IN A WELL CASING, THE COMBINATION OF: A MANDREL HAVING MEANS FOR ATTACHING TO THE TUBING, FIRST MEANS SLIDABLY AND ROTATABLY MOUNTED ON SAID MANDREL, SECOND MEANS SLIDABLY AND ROTABABLY MOUNTED ON SAID MANDREL, MEANS ON SAID FIRST MEANS FOR REISLIENTLY ENGAGING THE CASING AND FRICTIONALLY RESISTING MOVEMENT OF SAID FIRST MEANS RELATIVE TO THE CASING, MEANS ON SAID MANDREL AND FIRST MEANS FOR SELECTIVELY AND RELEASABLY INTERCONNECTING AND LOCKING SAID FIRST MEANS TO SAID MANDREL, CASING ENGAGING MEANS MOUNTED ON SAID SECOND MEANS FOR MOVEMENT TOWARD AND AWAY FROM THE CASING UPON AXIAL MOVEMENT OF SAID CASING ENGAGING MEANS RELATIVE TO SAID SECOND MEANS, MEANS INTERCONNECTING SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |