Patent US3333635A successfully refreshed from Google Patents.
US3333635A
Expired / Lapsed
US
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Method and apparatus for completing wells
Assignee: ConocoPhillips Co
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Filing: 1964-04-20
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Granted: 1967-08-01
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 John M Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:31
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/086; E21B33/00; E21B33/10; E21B33/13; E21B33/134; E21B43/082
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A LINER FOR USE IN COMPLETING WELLS COMPRISING: AN ELONGATED TUBULAR BODY HAVING A PLURALITY OF PERFORATIONS THEREIN: AND HOLLOW INSERTS IN SAID PERFORATIONS, SAID INSERTS EACH HAVING A BORED SHANK PORTION AND A HEAD PORTION, WITH SAID HEAD PORTIONS DISPOSED INSIDE SAID TUBULAR BODY AND FORMING A SHOULDER WHICH ABUTS THE INTERNAL PERIPHERAL SURFACE OF THE TUBULAR BODY AND SAID SHANK PORTIONS EXTENDING THROUGH THE RESPECTIVE PERFORATIONS WITH THE BORE IN EACH SHANK PORTION FORMING A TAPERED OPENING AT THE OUTER PERIPHERAL SURFACE OF SAID TUBULAR BODY AND BEING CLOSED AT ITS OTHER END BY THE RESPECTIVE HEAD PORTION.
Claim 2
Dependent Claim
100 words
A LINER FOR USE IN COMPLETING WELLS COMPRISING: AN ELONGATED TUBULAR BODY HAVING A PLURALITY OF PERFORATIONS THEREIN: AND HOLLOW INSERTS IN SAID PERFORATIONS, SAID INSERTS EACH HAVING A BORED SHANK PORTION AND A HEAD PORTION, WITH SAID HEAD PORTIONS DISPOSED INSIDE SAID TUBULAR BODY AND FORMING A SHOULDER WHICH ABUTS THE INTERNAL PERIPHERAL SURFACE OF THE TUBULAR BODY AND SAID SHANK PORTIONS EXTENDING THROUGH THE RESPECTIVE PERFORATIONS WITH THE BORE IN EACH SHANK PORTION FORMING A TAPERED OPENING AT THE OUTER PERIPHERAL SURFACE OF SAID TUBULAR BODY AND BEING CLOSED AT ITS OTHER END BY THE RESPECTIVE HEAD PORTION.
Claim 3
Independent Claim
21 words
THE METHOD OF COMPLETING A WELL TO PRODUCE FLUID FROM A SUBTERRANEAN FORMATION COMPRISING: TRAVERSING THE FORMATION WITH A BORE HOLE;
Claim 4
Independent Claim
21 words
THE METHOD OF COMPLETING A WELL TO PRODUCE FLUID FROM A SUBTERRANEAN FORMATION COMPRISING: TRAVERSING THE FORMATION WITH A BORE HOLE;
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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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |