Patent US5061847A successfully refreshed from Google Patents.
Patent US2744059A successfully refreshed from Google Patents.
US2744059A
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Continuous process for clarifying creosote oils
Assignee: Honeywell International Inc
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Filing: 1952-09-23
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Granted: 1956-05-01
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Expires: 1972-09-23
Abstract
No abstract record available.
Inventors
- 👤 Perry E Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:09
CPC Classifications
C; C10; C10C; C10C1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR TREATING CRESOTE OILS TO IMPROVE THEIR LIQUIDITY WHICH COMPRISES CAUSING COUNTERCURRENTLY FLOWING CREOSOTE OIL HAVING A "LIMPID POINT OUT" OF AT LEAST ABOUT 40* C. AND WATER TO CONTACT EACH OTHER IN DIRECT HEAT EXCHANGING RELATIONSHIP IN A CONTACTING ZONE WHOSE TEMPERATURE RANGES FROM AN UPPER LIMIT WHICH IS ABOVE TEH "LIMPID POINT OUT" TEMPERATURE OF THE OIL TO A LOWER LIMIT WHICH IS AT LEAST ABOUT 20* C. BELOW THE "LIMPID POINT OUT" TEMPERATURE OF SAID OIL, WHEREBY FREE DRAINING CRYSTALS ARE FORMED, AND SEPARATING THE CRYSTALS FROM THE OIL.
Claim 2
Dependent Claim
94 words
A PROCESS FOR TREATING CRESOTE OILS TO IMPROVE THEIR LIQUIDITY WHICH COMPRISES CAUSING COUNTERCURRENTLY FLOWING CREOSOTE OIL HAVING A "LIMPID POINT OUT" OF AT LEAST ABOUT 40* C. AND WATER TO CONTACT EACH OTHER IN DIRECT HEAT EXCHANGING RELATIONSHIP IN A CONTACTING ZONE WHOSE TEMPERATURE RANGES FROM AN UPPER LIMIT WHICH IS ABOVE TEH "LIMPID POINT OUT" TEMPERATURE OF THE OIL TO A LOWER LIMIT WHICH IS AT LEAST ABOUT 20* C. BELOW THE "LIMPID POINT OUT" TEMPERATURE OF SAID OIL, WHEREBY FREE DRAINING CRYSTALS ARE FORMED, AND SEPARATING THE CRYSTALS FROM THE 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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |