Patent US3026935A successfully refreshed from Google Patents.
US3026935A
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US
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In situ combustion
Assignee: Texaco Inc
•
Filing: 1958-07-18
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Granted: 1962-03-27
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Expires: 1978-07-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Allen
- 👤 Robert E Kunetka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:57
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2754911A
Cited
US2788071A
Cited
US2793696A
Cited
US2901043A
Cited
US2818118A
Cited
US2819761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |