US2812830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydration of gases
Assignee: Phillips Petroleum Co
•
Filing: 1956-04-30
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Granted: 1957-11-12
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Robert E Sattler
- 👤 Joseph W Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
IN A PROCESS FOR DEHYDRATING A GAS CONTAINING MOISTURE WITH A LIQUID DESICCANT, THE IMPROVEMENT COMPRISING MIXING SAID GAS WITH SAID LIQUID DESICCANT CONTAINING PREVIOUSLY ABSORBED MOISTURE AND AS SUBSEQUENTLY PRODUCED, PASSING THIS MIXTURE INTO A PHASE SEPARATION ZONE AND THEREIN SEPARATING A GAS PHASE FROM A LIQUID PHASE, CONTACTING SAID GAS PHASE WITH SAID LIQUID DESICCANT LEAN IN ABSORBED MOISTURE IN A COUNTERCURRENT ABSORPTION OPERATION WHEREIN MOISTURE IS ABSORBED BY THIS LATTER MENTIONED DESICCANT, FROM THIS ABSORPTION OPERATION WITH-
References Cited (Backward Citations)
US2151248A
Cited
US2235322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |