Patent US3353601A successfully refreshed from Google Patents.
US3353601A
Expired / Lapsed
US
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Composition and use therefor for water shut-off
Assignee: Dow Chemical Co
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Filing: 1965-07-26
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Granted: 1967-11-21
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Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Francis E Dollarhide
- 👤 Eugene D Mullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/80; C09K8/805; C09K17/00; C09K17/14; C09K17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF INHIBITING THE PASSAGE OF WATER AND AQUEOUS LIQUIDS THROUGH FISSURES, FRACTURES, AND PASSAGEWAYS IN TERRANEAN AND SUBTERRANEAN STRATA WHICH COMPRISES EMPLACING IN SAID FISSURES, FRACTURES, AND PASSAGEWAYS A MASS OF DISCRETE PARTICLES OF A SIZE OF FROM ABOUT 4 TO ABOUT 325 MESH, SAID PARTICLES CONSISTING ESSENTIALLY OF A WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED PARTICULATED POLYMER BONDED BY MEANS OF AN INTERLAYER OF HARDENED RESIN COMPOSITION, TO HARD GRANULAR NUCLEI WHICH PROVIDE DURABLE CORES FOR SAID PARTICLES, SAID PARTICULATED POLYMER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN ABOUT 0.2 OF THAT OF SAID GRANULAR NUCLEI.
Claim 2
Independent Claim
97 words
THE METHOD OF INHIBITING THE PASSAGE OF WATER AND AQUEOUS LIQUIDS THROUGH FISSURES, FRACTURES, AND PASSAGEWAYS IN TERRANEAN AND SUBTERRANEAN STRATA WHICH COMPRISES EMPLACING IN SAID FISSURES, FRACTURES, AND PASSAGEWAYS A MASS OF DISCRETE PARTICLES OF A SIZE OF FROM ABOUT 4 TO ABOUT 325 MESH, SAID PARTICLES CONSISTING ESSENTIALLY OF A WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED PARTICULATED POLYMER BONDED BY MEANS OF AN INTERLAYER OF HARDENED RESIN COMPOSITION, TO HARD GRANULAR NUCLEI WHICH PROVIDE DURABLE CORES FOR SAID PARTICLES, SAID PARTICULATED POLYMER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN ABOUT 0.2 OF THAT OF SAID GRANULAR NUCLEI.
References Cited (Backward Citations)
US2650195A
Cited
US2823753A
Cited
US3026938A
Cited
US3054778A
Cited
US3281354A
Cited
US3150726A
Cited
US3181612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |