US3480080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterflooding with an aqueous,saline solution of a hydrocarbon sulfonate having an optimum degree of sulfonation
Assignee: Mobil Oil AS
•
Filing: 1968-03-22
•
Granted: 1969-11-25
•
Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 Charles L Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:21
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3126952A
Cited
US2839466A
Cited
US2808109A
Cited
US3187564A
Cited
US3167119A
Cited
US3330344A
Cited
US3288213A
Cited
US3302711A
Cited
US3302713A
Cited
US3348611A
Cited
US3392782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |