Patent US3243366A successfully refreshed from Google Patents.
US3243366A
Expired / Lapsed
US
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Dewaxing by contact with a crystalline zeolitic adsorbent
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-08-18
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Granted: 1966-03-29
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:52
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE PROCESS FOR SEPARATING WAXY STRAIGHT-CHAIN HYDROCARBONS FROM A HYDROCARBON OIL CONTAINING THE SAME WHICH COMPRISES: CONTACTING SAID OIL IN LIQUID PHASE WITH AN ALUMINO-SILICATE ZEOLITIC SOLID ADSORBENT, HAVING UNIFORM PORES OF ABOUT 5 A. DIAMETER, AT A TEMPERATURE IN THE RANGE OF 300-700*F. AND ELEVATED PRESSURE SUFFICIENT TO MAINTAIN LIQUID PHASE DURING SAID CONTACTING, WHEREBY SAID WAXY STRAIGHT-CHAIN HYDROCARBONS ARE ADSORBED IN SAID SOLID ADSORBENT AND WITHDRAWING A SUBSTANTIALLY DEWAXED OIL FROM SAID SOLID ADSORBENT.
Claim 2
Dependent Claim
76 words
THE PROCESS FOR SEPARATING WAXY STRAIGHT-CHAIN HYDROCARBONS FROM A HYDROCARBON OIL CONTAINING THE SAME WHICH COMPRISES: CONTACTING SAID OIL IN LIQUID PHASE WITH AN ALUMINO-SILICATE ZEOLITIC SOLID ADSORBENT, HAVING UNIFORM PORES OF ABOUT 5 A. DIAMETER, AT A TEMPERATURE IN THE RANGE OF 300-700*F. AND ELEVATED PRESSURE SUFFICIENT TO MAINTAIN LIQUID PHASE DURING SAID CONTACTING, WHEREBY SAID WAXY STRAIGHT-CHAIN HYDROCARBONS ARE ADSORBED IN SAID SOLID ADSORBENT AND WITHDRAWING A SUBSTANTIALLY DEWAXED OIL FROM SAID SOLID ADSORBENT.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |