Patent US5011666A successfully refreshed from Google Patents.
Patent US3441499A successfully refreshed from Google Patents.
US3441499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating crude petroleum production
Assignee: Cameron Solutions Inc
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Filing: 1965-09-23
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Granted: 1969-04-29
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Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Alex W Francis Jr
- 👤 Joseph L Maher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:40
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR TREATING A VISCOUS, EMULSIFIED CRUDE OIL, INCLUDING: ADDING A LIGHT HYDROCARBON FRACTION TO THE VISCOUS, EMULSIFIED CRUDE OIL TO DILUTE THE CRUDE OIL AND FACILITATE SEPARATION OF WATER FROM THE MIXTURE, SEPARATING WATER FROM THE MIXTURE OF CRUDE OIL AND THE LIGHT HYDROCARBON FRACTION, PASSING STEAM THROUGH THE MIXTURE TO VAPORIZE THE LIGHT HYDROCARBON FRACTION, COOLING THE STEAM AND VAPORIZED LIGHT HYDROCARBON FRACTION UNTIL THEY CONDENSE, SEPARATING THE CONDENSED WATER FROM THE HYDROCARBON FRACTION, RECYCLING THE WATER SEPARATED TO GENERATE THE STEAM, AND UTILIZING THE LIGHT HYDROCARBON FRACTION TO DILUTE THE CRUDE OIL.
Claim 2
Dependent Claim
96 words
A PROCESS FOR TREATING A VISCOUS, EMULSIFIED CRUDE OIL, INCLUDING: ADDING A LIGHT HYDROCARBON FRACTION TO THE VISCOUS, EMULSIFIED CRUDE OIL TO DILUTE THE CRUDE OIL AND FACILITATE SEPARATION OF WATER FROM THE MIXTURE, SEPARATING WATER FROM THE MIXTURE OF CRUDE OIL AND THE LIGHT HYDROCARBON FRACTION, PASSING STEAM THROUGH THE MIXTURE TO VAPORIZE THE LIGHT HYDROCARBON FRACTION, COOLING THE STEAM AND VAPORIZED LIGHT HYDROCARBON FRACTION UNTIL THEY CONDENSE, SEPARATING THE CONDENSED WATER FROM THE HYDROCARBON FRACTION, RECYCLING THE WATER SEPARATED TO GENERATE THE STEAM, AND UTILIZING THE LIGHT HYDROCARBON FRACTION TO DILUTE THE CRUDE OIL.
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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |