US3219115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble solid foaming composition
Assignee: Halliburton Co
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Filing: 1962-06-26
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Granted: 1965-11-23
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Expires: 1982-06-26
Abstract
No abstract record available.
Inventors
- 👤 Wayne F Hower
- 👤 John A Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:21
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/92; C09K8/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR RAINSING WATER FROMA SUBTERRANEAN ZONE TO THE SURFACE COMPRISING THE STEPS OF: INTRODUCING INTO SAID WATER A SOLID COMPLETELY WATER SOLUBLE FOAMING COMPOSITION COMPRISING A FOAM PRODUCING SURFACE ACTIVE AGENT HAVING A SPECIFIC GRAVITY LESS THAN THAT OF WATER AND A WATER SOLUBLE WEIGHTING MATERIAL COMPATIBLE THEREWITH, MIXED TOGETHER AND MOLDED INTO A PREDETERMINED GEOMERIC CONFIGURATION,S AID SOLID COMPLETELY WATER SOLUBLE FOAMING COMPOITION HAVING A SPECIFIC GRAVITY GREATER THAN THAT OF WATER; AND, FLOWING A GAS THROUGH SAID SUBTERRANEAN ZONE AND THEN TO THE SURFACE THEREBY CAUSING AN AQUEOUS FOAM AND RAINSING SAID FOAM TO THE SURFACE.
Claim 2
Dependent Claim
100 words
A PROCESS FOR RAINSING WATER FROMA SUBTERRANEAN ZONE TO THE SURFACE COMPRISING THE STEPS OF: INTRODUCING INTO SAID WATER A SOLID COMPLETELY WATER SOLUBLE FOAMING COMPOSITION COMPRISING A FOAM PRODUCING SURFACE ACTIVE AGENT HAVING A SPECIFIC GRAVITY LESS THAN THAT OF WATER AND A WATER SOLUBLE WEIGHTING MATERIAL COMPATIBLE THEREWITH, MIXED TOGETHER AND MOLDED INTO A PREDETERMINED GEOMERIC CONFIGURATION,S AID SOLID COMPLETELY WATER SOLUBLE FOAMING COMPOITION HAVING A SPECIFIC GRAVITY GREATER THAN THAT OF WATER; AND, FLOWING A GAS THROUGH SAID SUBTERRANEAN ZONE AND THEN TO THE SURFACE THEREBY CAUSING AN AQUEOUS FOAM AND RAINSING SAID FOAM TO THE SURFACE.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |