Patent US3269931A successfully refreshed from Google Patents.
US3269931A
Expired / Lapsed
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Method and apparatus for reducing the haze number of a mineral oil
Assignee: Lodge Cottrell Ltd
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Filing: 1965-03-08
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Granted: 1966-08-30
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Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Darby Kenneth
- 👤 Burton Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:16
CPC Classifications
C; C10; C10G; C10G32/00; C10G32/02; B; B03; B03C; B03C11/00; C10G33/00; C10G33/02; B03C2201/00; B03C2201/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
A METHOD REDUCING THE HAZE NUMBER OF A MINERAL OIL COMPRISING THE STEPS OF (A) PASSING THE OIL THROUGH A GROUNDED PLANAR FORMINOUS SELECTRODE, (B) THEN THROUGH A CHARGED ELECTRODE STRUXTURE CONSISTING OF A POLURALITY OF PLANAR FORMINOUS ELECTRODES EACH PARALLEL WITH SAID GROUNDED ELECTRODE AND ALL CHARGED TO THE SAME HIGH TEMSION DIRECT CURRENT POTENTIAL, THE OIL PASSING THROUGH EACH ELECTRODE OF SAID STRUCTURE AND THE ELECTRODES OF SAID STRUCTURE COMPRISING EDGE PORTIONS SPACED FROM ADJACENT GROUNDED ELECTRODE MEANS, AND (C9 THEN THROUGH A FURTHER GROUNDED PLANAR FORAMINOUS ELECTRODE PARALLEL WITH SAID FIRST MENTIONED GROUNDED ELECTRODE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |