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Patent US2642154A successfully refreshed from Google Patents.
US2642154A
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Treatment of gaseous mixtures
Assignee: Imperial Chemical Industries Ltd
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Filing: 1951-06-29
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Granted: 1953-06-16
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 Woolcock James William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:47
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; C; C10; C10K; C10K1/00; C10K1/08; C10K1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR SEPARATING A CONSTITUENT FROM A GASEOUS MIXTURE WHICH COMPRISES BRINGING THE GASEOUS MIXTURE INTO CONTACT WITH A LIQUID ABSORBENT FOR THE SAID CONSTITUENT AT A FIRST TEMPERATURE, AND SUBJECTING THE RESULTING SOLUTTION IN THE PRESENCE OF AT LEAST ONE ADDITIONAL LIQUID TO ELEVATED TEMPERTURE, WHEREBY THE SAID CONSTITUENT IS REGENERATED; THE LIQUIDS USED AND THEIR PROPORTIONS BEING SUCH THAT AT THE REGENERATION TEMPERATURE THE MIXTURE OF LIQUIDS EXISTS AS AT LEAST ONE LIQUID PHASE BUT AT THE FIRST TEMPERATURE EXISTS AS, A LARGER NUMBER OF PHASES OF WHICH ONE COMPRISES PREDOMINANTLY THE ASORBENT FOR THE SAID GASEOUS CONSTITUENT.
Claim 2
Dependent Claim
101 words
A PROCESS FOR SEPARATING A CONSTITUENT FROM A GASEOUS MIXTURE WHICH COMPRISES BRINGING THE GASEOUS MIXTURE INTO CONTACT WITH A LIQUID ABSORBENT FOR THE SAID CONSTITUENT AT A FIRST TEMPERATURE, AND SUBJECTING THE RESULTING SOLUTTION IN THE PRESENCE OF AT LEAST ONE ADDITIONAL LIQUID TO ELEVATED TEMPERTURE, WHEREBY THE SAID CONSTITUENT IS REGENERATED; THE LIQUIDS USED AND THEIR PROPORTIONS BEING SUCH THAT AT THE REGENERATION TEMPERATURE THE MIXTURE OF LIQUIDS EXISTS AS AT LEAST ONE LIQUID PHASE BUT AT THE FIRST TEMPERATURE EXISTS AS, A LARGER NUMBER OF PHASES OF WHICH ONE COMPRISES PREDOMINANTLY THE ASORBENT FOR THE SAID GASEOUS CONSTITUENT.
References Cited (Backward Citations)
US2366360A
Cited
US2371908A
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US2385705A
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US2370530A
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US2389144A
Cited
US2449610A
Cited
GB580922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |