Patent US3080924A successfully refreshed from Google Patents.
US3080924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchors for tubular strings
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1960-03-18
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Granted: 1963-03-12
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 John R Baker
- 👤 Julian D Keithahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:01
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/04; E21B23/0411; E21B23/04115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN APPARATUS TO BE LOWERED IN A WELL CONDUIT: A BODY HAVING A FLUID PASSAGE AND A LATERAL OPENING IN THE BODY COMMUNICATING WITH SAID PASSAGE; A GRIPPING MEMBER MOVABLE LATERALLY IN SAID OPENING AND MOVABLE BY THE PRESSURE OF FLUID IN SAID PASSAGE INTO GRIPPING ENGAGEMENT WITH THE WELL CONDUIT; A RETAINING MEMBER MOVABLE LATERALLY ON SAID BODY AND ENGAGEABLE WITH THE WELL CONDUIT;
Claim 2
Dependent Claim
65 words
IN APPARATUS TO BE LOWERED IN A WELL CONDUIT: A BODY HAVING A FLUID PASSAGE AND A LATERAL OPENING IN THE BODY COMMUNICATING WITH SAID PASSAGE; A GRIPPING MEMBER MOVABLE LATERALLY IN SAID OPENING AND MOVABLE BY THE PRESSURE OF FLUID IN SAID PASSAGE INTO GRIPPING ENGAGEMENT WITH THE WELL CONDUIT; A RETAINING MEMBER MOVABLE LATERALLY ON SAID BODY AND ENGAGEABLE WITH THE WELL CONDUIT;
References Cited (Backward Citations)
US2603163A
Cited
US2792063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |