US3373812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of permeably consolidating incompetent sands with a heat-curable resin
Assignee: Gulf Research and Development Co
•
Filing: 1965-07-09
•
Granted: 1968-03-19
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Francis M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:47
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; C; C09; C09K; C09K8/00; C09K8/56; C09K8/58; C09K8/592
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126959A
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US2399055A
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US2378817A
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US2796934A
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US2787325A
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US2799341A
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US3087544A
Cited
US3199590A
Cited
US3219110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |