Patent US3304251A successfully refreshed from Google Patents.
US3304251A
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Separation of wax from an oil dispersion using a non-uniform electric field
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-03-14
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Granted: 1967-02-14
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Walker Jack
- 👤 Donald W Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:22
CPC Classifications
B; B03; B03C; B03C5/00; B03C5/02; B03C5/022; B03C5/026; C; C10; C10G; C10G73/00; C10G73/02; C10G73/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS OF SEPARATING PRECIPITATED WAX PARTICLES FROM A DISPERSION OF SAID PARTICLES IN A LIQUID DILUENT COMPRISING CONTACTING THE DISPERSION WITH A NON-UNIFORM ELECTRICAL FIELD COMPRISING A MOVING WIRE HIGH VOLTAGE ELECTRODE, SAID WAX PARTICLES MIGRATING AND ADHERING TO THE MOVING WIRE ELECTRODE BY VIRTUE OF THE APPLIED NONUNIFORM FIELD AND BEING REMOVED FROM THE CONTACTING ZONE.
Claim 2
Dependent Claim
58 words
A PROCESS OF SEPARATING PRECIPITATED WAX PARTICLES FROM A DISPERSION OF SAID PARTICLES IN A LIQUID DILUENT COMPRISING CONTACTING THE DISPERSION WITH A NON-UNIFORM ELECTRICAL FIELD COMPRISING A MOVING WIRE HIGH VOLTAGE ELECTRODE, SAID WAX PARTICLES MIGRATING AND ADHERING TO THE MOVING WIRE ELECTRODE BY VIRTUE OF THE APPLIED NONUNIFORM FIELD AND BEING REMOVED FROM THE CONTACTING ZONE.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |