US3470958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well stimulation with hydrophilic fluids
Assignee: Marathon Oil Co
•
Filing: 1968-03-12
•
Granted: 1969-10-07
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Expires: 1988-03-12
Abstract
No abstract record available.
Inventors
- 👤 Wilson L Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:44
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2356205A
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US3149669A
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US3131759A
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US3149673A
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US3285341A
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US3275075A
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US3254714A
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US3301325A
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US3307628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |