Patent US3336979A successfully refreshed from Google Patents.
US3336979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and use thereof for water shut-off
Assignee: Dow Chemical Co
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Filing: 1965-07-26
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Granted: 1967-08-22
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Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Joe B Ingraham
- 👤 Daniel L Gibson
- 👤 Clare H Kucera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:48
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/80; C09K8/805; C09K17/00; C09K17/14; C09K17/16; Y; Y10; Y10S; Y10S507/00; Y10S507/922; Y10S507/926
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
THE COMPOSITION CONSISTING ESSENTIALLY OF A MASS OF DISCRETE PARTICLES COMPRISING HARD CORE NUCLEI; AN INTERLAYER OF A COLLOID-FORMING WATER-DISPERSIBLE ANIMAL PROTEIN ADHESIVE, AND AN OUTER COATING OF A PARTICULATE WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED POLYMER BONDED TO SAID NUCLEI BY SAID ADHESIVE AND FORMING AN EVELOPING OUTER COATING THEREFOR, SAID POLYMER HAVING AN AVERAGE PARTICLE SIZE OF NOT MORE THAN THE AVERAGE SIZE OF SAID NUCLEI.
Claim 2
Dependent Claim
65 words
THE COMPOSITION CONSISTING ESSENTIALLY OF A MASS OF DISCRETE PARTICLES COMPRISING HARD CORE NUCLEI; AN INTERLAYER OF A COLLOID-FORMING WATER-DISPERSIBLE ANIMAL PROTEIN ADHESIVE, AND AN OUTER COATING OF A PARTICULATE WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED POLYMER BONDED TO SAID NUCLEI BY SAID ADHESIVE AND FORMING AN EVELOPING OUTER COATING THEREFOR, SAID POLYMER HAVING AN AVERAGE PARTICLE SIZE OF NOT MORE THAN THE AVERAGE SIZE OF SAID NUCLEI.
Claim 3
Independent Claim
92 words
THE METHOD OF INHIBITING THE PASSAGE OF WATER AND AQUEOUS LIQUIDS THROUGH PASSAGEWAYS IN TERRANEAN AND SUBTERRANEAN STRATA WHICH COMPRISES EMPLACING IN SUCH PASSAGEWAY A MASS OF DISCRETE PARTICLES OF A SIZE OF FROM ABOUT 4 TO ABOUT 325 MESH, SAID PARTICLES CONSISTING ASSENTIALLY OF A WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED POLYMER BONDED, BY MEANS OF AN INTERLAYER OF A COLLOID-FORMING WATER-DISPERSIBLE ANIMAL PROTEIN ADHESIVE, TO HARD GRANULAR NUCLEI WHICH PROVIDE DURABLE CORES FOR SAID PARTICLES, SAID PARTICULATED POLYMER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN THE AVERAGE SIZE OF SAID GRANULAR NUCLEI.
Claim 4
Independent Claim
92 words
THE METHOD OF INHIBITING THE PASSAGE OF WATER AND AQUEOUS LIQUIDS THROUGH PASSAGEWAYS IN TERRANEAN AND SUBTERRANEAN STRATA WHICH COMPRISES EMPLACING IN SUCH PASSAGEWAY A MASS OF DISCRETE PARTICLES OF A SIZE OF FROM ABOUT 4 TO ABOUT 325 MESH, SAID PARTICLES CONSISTING ASSENTIALLY OF A WATER-INSOLUBLE WATER-SWELLABLE CROSS-LINKED POLYMER BONDED, BY MEANS OF AN INTERLAYER OF A COLLOID-FORMING WATER-DISPERSIBLE ANIMAL PROTEIN ADHESIVE, TO HARD GRANULAR NUCLEI WHICH PROVIDE DURABLE CORES FOR SAID PARTICLES, SAID PARTICULATED POLYMER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN THE AVERAGE SIZE OF SAID GRANULAR NUCLEI.
References Cited (Backward Citations)
US2827121A
Cited
US2896717A
Cited
US2889883A
Cited
US3281354A
Cited
US3181612A
Cited
US3241613A
Cited
US3252904A
Cited
US3237693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |