Patent US2888807A successfully refreshed from Google Patents.
US2888807A
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Process of removing carbon dioxide from natural gas
Assignee: Constock Liquid Methane Corp
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Filing: 1955-10-06
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Granted: 1959-06-02
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Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Philip E Bocquet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0266; C; C07; C07C; C07C7/00; C07C7/04; F25J3/0204; F25J3/0209; F25J3/0233; F25J2200/00; F25J2200/04; F25J2200/70; F25J2200/74; F25J2210/00; F25J2210/04; F25J2220/00; F25J2220/80; F25J2220/82; F25J2245/00; F25J2245/02; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S62/00; Y10S62/928; Y10S62/929
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
THE PROCESS OF REMOVING CARBON DIOXIDE FROM A PREDOMINANTLY METHANE STREAM BY A FIRST SECOND DISTILLATION TOWERS WHICH COMPRISES MAINTAINING THE FIRST TOWER SLIGHTLY BELOW THE CRITICAL PRESSURE OF METHANE, MAINTAINING THE SECOND TOWER SLIGHTLY ABOVE THE PRESSURE AT WHICH CARBON DIOXIDE WILL SOLIDFY WHEN COMBINED WITH METHANE, DIRECTING THE BOTTOM EFFLUENT OF THE FIRST TOWER TO THE MEDIAL PORTION OF THE SECOND TOWER, DIRECTING THE TOP EFFLUENT FROM THE SECOND TOWER, TO MEDIAL PORTION OF THE FIRST TOWER, AND DIRECTING THE STREAM SEQUENTIALLY THROUGH
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |