US2999063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-in-oil emulsion drilling and fracturing fluid
Assignee: Individual
•
Filing: 1957-08-13
•
Granted: 1961-09-05
•
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 17:57
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.
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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 |