US3400761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of fluid flow barriers in the secondary recovery of oil
Assignee: Hunt Oil Co
•
Filing: 1965-12-27
•
Granted: 1968-09-10
•
Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr James R Latimer
- 👤 Gene W Snell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:40
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2713906A
Cited
US3087543A
Cited
US3152640A
Cited
US3237690A
Cited
US3318380A
Cited
US3297088A
Cited
US3288212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |