Patent US4616347A successfully refreshed from Google Patents.
Patent US2999063A successfully refreshed from Google Patents.
US2999063A
Expired / Lapsed
US
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Water-in-oil emulsion drilling and fracturing fluid
Assignee: Individual
•
Filing: 1957-08-13
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Granted: 1961-09-05
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Expires: 1977-08-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Hoeppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/32; C09K8/36; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A STABLE WATER-IN-OIL EMULSION DRILLING AND FRACTURING FLUID COMPRISING 10% TO 70% OF AN AQUEOUS PHASE DISPERSED IN MINERAL OIL, 0.2 TO 5% OF A METALLIC SOAP DERIVED FROM A CLASS OF OIL SOLUBLE ORGANIC ACIDS CONSISTING OF FATTY, ROSIN, NAPHTHENIC AND PHOSPHATIDES; AND, 0.1 TO 5% OF AN AMINE HAVING A MOLECULAR WEIGHT GREATER THAN 200 AND CONTAINING AT LEAST ONE ALIPHATIC CHAIN OF AT LEAST TWELVE CARBON ATOMS IN LENGTH, SELECTED FROM A CLASS OF ALIPHATIC AMIDO DIAMINES, ALIPHATIC AMIDO POLYAMINES, AND ALIPHATIC HETEROCYCLIC AMINES CONTAINING 2 NITROGEN ATOMS IN THE RING STRUCTURE.
Claim 2
Dependent Claim
95 words
A STABLE WATER-IN-OIL EMULSION DRILLING AND FRACTURING FLUID COMPRISING 10% TO 70% OF AN AQUEOUS PHASE DISPERSED IN MINERAL OIL, 0.2 TO 5% OF A METALLIC SOAP DERIVED FROM A CLASS OF OIL SOLUBLE ORGANIC ACIDS CONSISTING OF FATTY, ROSIN, NAPHTHENIC AND PHOSPHATIDES; AND, 0.1 TO 5% OF AN AMINE HAVING A MOLECULAR WEIGHT GREATER THAN 200 AND CONTAINING AT LEAST ONE ALIPHATIC CHAIN OF AT LEAST TWELVE CARBON ATOMS IN LENGTH, SELECTED FROM A CLASS OF ALIPHATIC AMIDO DIAMINES, ALIPHATIC AMIDO POLYAMINES, AND ALIPHATIC HETEROCYCLIC AMINES CONTAINING 2 NITROGEN ATOMS IN THE RING STRUCTURE.
References Cited (Backward Citations)
GB337368A
Cited
US2099825A
Cited
US2400001A
Cited
US2509588A
Cited
US2497398A
Cited
US2667457A
Cited
US2702787A
Cited
US2675353A
Cited
US2661334A
Cited
US2797196A
Cited
US2802531A
Cited
US2779734A
Cited
US2876197A
Cited
US2946746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |