US3368626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for consolidating a permeable mass
Assignee: Shell USA Inc
•
Filing: 1965-03-24
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Granted: 1968-02-13
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Cornelis Bezemer
- 👤 Franciscus H Meijs
- 👤 Marinus Van Zanten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:59
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; C; C09; C09K; C09K17/00; C09K17/14; C09K17/36; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5086; C09K8/56; C09K8/565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |