Patent US2550446A successfully refreshed from Google Patents.
US2550446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of acidic constituents
Assignee: —
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Filing: —
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Granted: 1951-04-24
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Expires: 1968-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:01
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1456; B01D53/1475; B01D53/1425; B01D53/1493; C; C10; C10L; C10L3/00; C10L3/06; C10L3/10; C10L3/101; C10L3/102; C10L3/106; B01D2257/00; B01D2257/30; B01D2257/304; B01D2257/308; B01D2257/50; B01D2257/504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD OF TREATING A GAS FOR DEHYDRATION AND REMOVAL OF CARBON DIOXIDE CONTAINED THEREIN, THAT COMPRISES CONTACTING THE GAS WITH A SOLUTION CONTAINING AN AMINE, WATER, A POLYHYDRIC ALCOHOL AND AN ORGANIC DILUENT OF THE CLASS CONSISTING OF MONOHYDRIC ALIPHATIC ALCOHOLS, AROMATIC AND ALICYCLIC MONOHYDRIC ALCOHOLS, HETEROCYLIC MONOHYDRIC ALCOHOLS, WATER SOLUBLE ETHERS OF POLYHYDRIC ALCOHOLS, AND AROMATIC AND CYCLIC NITROGEN BASES TO DEHYDRATES THE GAS AND FORM A RICH SOLUTION CONTAINING THE CARBON DIOXIDE-AMINE REACTION PRODUCT DISSOLVED THEREIN, AND HEATING AND GENERATING THE RICH SOLUTION FOR REUSE.
Claim 2
Independent Claim
88 words
THE METHOD OF TREATING A GAS FOR DEHYDRATION AND REMOVAL OF CARBON DIOXIDE CONTAINED THEREIN, THAT COMPRISES CONTACTING THE GAS WITH A SOLUTION CONTAINING AN AMINE, WATER, A POLYHYDRIC ALCOHOL AND AN ORGANIC DILUENT OF THE CLASS CONSISTING OF MONOHYDRIC ALIPHATIC ALCOHOLS, AROMATIC AND ALICYCLIC MONOHYDRIC ALCOHOLS, HETEROCYLIC MONOHYDRIC ALCOHOLS, WATER SOLUBLE ETHERS OF POLYHYDRIC ALCOHOLS, AND AROMATIC AND CYCLIC NITROGEN BASES TO DEHYDRATES THE GAS AND FORM A RICH SOLUTION CONTAINING THE CARBON DIOXIDE-AMINE REACTION PRODUCT DISSOLVED THEREIN, AND HEATING AND GENERATING THE RICH SOLUTION FOR REUSE.
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) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |