Patent US3429373A successfully refreshed from Google Patents.
US3429373A
Expired / Lapsed
US
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Method and composition for stabilizing incompetent oil containing formations
Assignee: Texaco Inc
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Filing: 1968-04-24
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Granted: 1969-02-25
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Expires: 1988-04-24
Abstract
No abstract record available.
Inventors
- 👤 Bobby G Harnsberger
- 👤 Joy T Payton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:20
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2285302A
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US2800963A
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US2798003A
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US2840483A
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US2842449A
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US3079268A
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US3119448A
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US3145774A
Cited
US3244229A
Cited
US3242986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |