US3511314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cementing composition and well cementing process employing same
Assignee: Schlumberger Technology Corp
•
Filing: 1968-10-28
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Granted: 1970-05-12
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Expires: 1988-10-28
Abstract
No abstract record available.
Inventors
- 👤 L J Scott Jr
- 👤 Daniel L Gibson
- 👤 Fred E Hook
- 👤 Clare H Kucera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/16; C04B24/20; C04B24/22; C04B24/226; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2614634A
Cited
US2690975A
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US2860060A
Cited
US2927033A
Cited
GB893911A
Cited
US3234154A
Cited
US3277162A
Cited
US3359225A
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 |