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Patent US3375869A successfully refreshed from Google Patents.
US3375869A
Expired / Lapsed
US
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Method of cementing casing in a well
Assignee: Mobil Oil AS
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Filing: 1965-10-22
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Granted: 1968-04-02
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph U Messenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:58
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1452463A
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US2191652A
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US2649160A
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US2868295A
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US2961044A
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US3064957A
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US3114418A
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US3340929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |