Patent US3511313A successfully refreshed from Google Patents.
US3511313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cementitious compositions and methods
Assignee: Schlumberger Technology Corp
•
Filing: 1965-09-10
•
Granted: 1970-05-12
•
Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Louis H Eilers
- 👤 Christ F Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:07
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L71/00; C08L71/02; C09K8/42; C09K8/44; C09K8/516; Y; Y10; Y10S; Y10S507/00; Y10S507/926
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2271758A
Cited
US2706186A
Cited
US3054764A
Cited
US3058862A
Cited
US3357938A
Cited
US3306870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |