Patent US2965173A successfully refreshed from Google Patents.
US2965173A
Expired / Lapsed
US
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Well apparatus and methods of setting a plurality of tubing strings in a well bore
Assignee: Individual
•
Filing: 1955-04-28
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Granted: 1960-12-20
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:08
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1035850A
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US1014272A
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US1202319A
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US1262107A
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US1861332A
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US1723682A
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US1871687A
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US2095899A
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US2335355A
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US2368428A
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US2605637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |