US3489222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of consolidating earth formations without removing tubing from well
Assignee: Chevron USA Inc
•
Filing: 1968-12-26
•
Granted: 1970-01-13
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Expires: 1988-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Millhone
- 👤 Chester L Love
- 👤 Alexander S Allen Jr
- 👤 Coral L Depriester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:19
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56; C09K8/565; E; E21; E21B; E21B43/00; E21B43/02; E21B43/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123138A
Cited
US2573690A
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US2761511A
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US2852078A
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US3134436A
Cited
US3302715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |