US2869672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous gas absorption process and apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1957-09-06
•
Granted: 1959-01-20
•
Expires: 1977-09-06
Abstract
No abstract record available.
Inventors
- 👤 Robert A Findlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/38; G01N30/42; B; B01; B01D; B01D53/00; B01D53/02; B01D53/025; C; C07; C07C; C07C7/00; C07C7/11; C07C7/12; G01N30/50; G01N30/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SEPARATION METHOD COMPRISING INTRODUCING A FEED MIXTURE COMPRISING A PLURALITY OF COMPONENTS IN VAPOR PHASE TO A COUNTERCURRENT MOVING STREAM OF AN ELUENT GAS AND SPHERES COATED WITH A LIQUID ABSORBENT HAVING A GREATER AFFINITY FOR AT LEAST ONE OF SAID COMPONENTS THAN FOR ANOTHER OF SAID COMPONENTS, REMOVING ELUENT GAS ALONG WITH COMPONENTS HAVING LESSER AFFINITY FOR SAID ABSORBENT FROM ONE END OF SAID COLUMN AND REMOVING ABSORBED SPHERES COATED WITH SAID ABSORBENT AND HAVING ABSORBED THEREIN SAID COMPONENT OF GREATER AFFINITY FROM THE OTHER END OF SAID COLUMN.
Claim 2
Dependent Claim
91 words
A SEPARATION METHOD COMPRISING INTRODUCING A FEED MIXTURE COMPRISING A PLURALITY OF COMPONENTS IN VAPOR PHASE TO A COUNTERCURRENT MOVING STREAM OF AN ELUENT GAS AND SPHERES COATED WITH A LIQUID ABSORBENT HAVING A GREATER AFFINITY FOR AT LEAST ONE OF SAID COMPONENTS THAN FOR ANOTHER OF SAID COMPONENTS, REMOVING ELUENT GAS ALONG WITH COMPONENTS HAVING LESSER AFFINITY FOR SAID ABSORBENT FROM ONE END OF SAID COLUMN AND REMOVING ABSORBED SPHERES COATED WITH SAID ABSORBENT AND HAVING ABSORBED THEREIN SAID COMPONENT OF GREATER AFFINITY FROM THE OTHER END OF SAID COLUMN.
References Cited (Backward Citations)
US2519873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |