Patent US1891950A successfully refreshed from Google Patents.
Patent US3305017A successfully refreshed from Google Patents.
US3305017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consolidation of incompetent earth formations
Assignee: Dow Chemical Co
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Filing: 1964-10-16
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Granted: 1967-02-21
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Francis E Dollarhide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:37
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56; C09K8/57; C09K8/575; C09K8/5751; C09K8/5755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
THE METHOD OF CONSOLIDATING AN INCOMPETENT EARTHEN FORMATION WHICH CONSISTS ESSENTIALLY OF (1) INJECTING INTO INTERSTITIAL SPACES AMONG EARTHEN PARTICLES AT THE EXPOSED SURFACES OF THE FORMATION A RESIN COMPOSITION COMPRISING BETWEEN 25 AND 75 PARTS BY VOLUME OF A LIQUID OIL-MISCIBLE ALIPHATIC MONO-ALCOHOL AND BALANCE TO MAKE A TOTAL OF 100 PARTS OF A LIQUID PHENOL-FORMALDEHYDE RESIN WHICH SETS UPON STANDING TO A SOLID RESIN; (2) INJECTING A LIQUID HYDROCARBON INTO SAID INTERSTITIAL SPACES OF THE FORMATION IN AN AMOUNT AT LEAST EQUAL TO THE VOLUME OF RESIN COMPOSITION; AND (3) LEAVING THE SO-TREATED FORMATION SUBSTANTIALLY UNDISTURBED FOR A TIME SUFFICIENT FOR THE RESIN TO SET TO FORM A FLUID-PERMEABLE STRUCTURAL NETWORK OF RESIN AND EARTHEN PARTICLES.
Claim 2
Independent Claim
118 words
THE METHOD OF CONSOLIDATING AN INCOMPETENT EARTHEN FORMATION WHICH CONSISTS ESSENTIALLY OF (1) INJECTING INTO INTERSTITIAL SPACES AMONG EARTHEN PARTICLES AT THE EXPOSED SURFACES OF THE FORMATION A RESIN COMPOSITION COMPRISING BETWEEN 25 AND 75 PARTS BY VOLUME OF A LIQUID OIL-MISCIBLE ALIPHATIC MONO-ALCOHOL AND BALANCE TO MAKE A TOTAL OF 100 PARTS OF A LIQUID PHENOL-FORMALDEHYDE RESIN WHICH SETS UPON STANDING TO A SOLID RESIN; (2) INJECTING A LIQUID HYDROCARBON INTO SAID INTERSTITIAL SPACES OF THE FORMATION IN AN AMOUNT AT LEAST EQUAL TO THE VOLUME OF RESIN COMPOSITION; AND (3) LEAVING THE SO-TREATED FORMATION SUBSTANTIALLY UNDISTURBED FOR A TIME SUFFICIENT FOR THE RESIN TO SET TO FORM A FLUID-PERMEABLE STRUCTURAL NETWORK OF RESIN AND EARTHEN PARTICLES.
References Cited (Backward Citations)
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Cited
US2674322A
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US2770306A
Cited
US3134436A
Cited
US3051236A
Cited
US3221814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |