US3482636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lessening the inhibitory effects to fluid flow due to the presence of solid organic substances in a subterranean formation
Assignee: Schlumberger Technology Corp
•
Filing: 1967-04-06
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Granted: 1969-12-09
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Expires: 1987-04-06
Abstract
No abstract record available.
Inventors
- 👤 Curtis Wendell Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; C; C09; C09K; C09K8/00; C09K8/52; C09K8/524; C09K8/528; C09K8/60; C09K8/605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1834783A
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US2105839A
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US2429593A
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US2560331A
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US3077454A
Cited
US3122503A
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US3249536A
Cited
US3372748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |