US3375873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement composition for high temperature wells
Assignee: Mobil Oil AS
•
Filing: 1964-11-16
•
Granted: 1968-04-02
•
Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Farris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C04; C04B; C04B24/00; C04B24/16; C04B24/18; E; E21; E21B; E21B33/00; E21B33/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3126291A
Cited
US2646360A
Cited
US2690975A
Cited
US3022824A
Cited
US3190356A
Cited
US3197316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |