Patent US2987470A successfully refreshed from Google Patents.
US2987470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demineralization of oils
Assignee: Hydrocarbon Research Inc
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Filing: 1958-11-13
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Granted: 1961-06-06
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Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 Turken Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:31
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/06; C10G25/00; C10G25/06; C10G45/00; C10G45/02; C10G45/14; C10G45/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROCESS OF REMOVING AT LEAST PART OF THE OIL SOLUBLE METALLIC IMPURITIES PRESENT IN A HYDROCARBON OIL, WHICH COMPRISES FLOWING SAID OIL UPWARDLY THROUGH A DEMINERALIZATION ZONE MAINTAINED AT A TEMPERATURE IN THE RANGE OF 600 TO 1000*F. AND AT A PRESSURE NOT EXCEEDING 5000 P.S.I.G. AND CONTAINING A FIXED MASS OF PARTICULATE CONTACT MATERIAL THE PARTICLES OF WHICH ARE IN THE SIZE RANGE OF ABOUT 3 TO 20 MESH SCREEN, REGULATING THE FLOW OF SAID OIL THROUGH SAID DEMINERALIZATION ZONE IN THE RANGE OF 20 TO 120 GALLONS PER MINUTE PER SQUARE FOOT OF HORIZONTAL CROSS SECTION OF SAID DEMINERALIZATION ZONE TO EXPAND THE SETTLED VOLUME OF SAID CONTACT MATERIAL AT LEAST 10% BUT INSUFFICIENT TO CARRY THE PARTICULATE CONTACT MATERIAL OUT OF SAID DEMINERALIZATION ZONE AND TO CAUSE RANDOM MOVEMENT OF THE PARTICLES OF SAID CONTACT MATERIAL, AND WITHDRAWING FROM SAID DEMINERALIZATION ZONE OIL WITH A RE-
Claim 2
Dependent Claim
150 words
A PROCESS OF REMOVING AT LEAST PART OF THE OIL SOLUBLE METALLIC IMPURITIES PRESENT IN A HYDROCARBON OIL, WHICH COMPRISES FLOWING SAID OIL UPWARDLY THROUGH A DEMINERALIZATION ZONE MAINTAINED AT A TEMPERATURE IN THE RANGE OF 600 TO 1000*F. AND AT A PRESSURE NOT EXCEEDING 5000 P.S.I.G. AND CONTAINING A FIXED MASS OF PARTICULATE CONTACT MATERIAL THE PARTICLES OF WHICH ARE IN THE SIZE RANGE OF ABOUT 3 TO 20 MESH SCREEN, REGULATING THE FLOW OF SAID OIL THROUGH SAID DEMINERALIZATION ZONE IN THE RANGE OF 20 TO 120 GALLONS PER MINUTE PER SQUARE FOOT OF HORIZONTAL CROSS SECTION OF SAID DEMINERALIZATION ZONE TO EXPAND THE SETTLED VOLUME OF SAID CONTACT MATERIAL AT LEAST 10% BUT INSUFFICIENT TO CARRY THE PARTICULATE CONTACT MATERIAL OUT OF SAID DEMINERALIZATION ZONE AND TO CAUSE RANDOM MOVEMENT OF THE PARTICLES OF SAID CONTACT MATERIAL, AND WITHDRAWING FROM SAID DEMINERALIZATION ZONE OIL WITH A RE-
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |