US3409080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous cementing composition adaptable to high turbulent flow and method of cementing a well using same
Assignee: Schlumberger Technology Corp
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Filing: 1967-04-04
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Granted: 1968-11-05
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Expires: 1987-04-04
Abstract
No abstract record available.
Inventors
- 👤 Hugh T Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:27
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C04; C04B; C04B24/00; C04B24/003; C04B28/00; C04B28/02; C09K8/467; C09K8/487; C04B2103/00; C04B2103/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2892728A
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US2848340A
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US3030258A
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US3116264A
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US3140269A
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US3234154A
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US3159591A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |