US2559152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isotope concentration process
Assignee: Sunoco Inc
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Filing: 1948-02-04
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Granted: 1951-07-03
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Expires: 1968-02-04
Abstract
No abstract record available.
Inventors
- 👤 Aristid V Grosse
- 👤 Allen F Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:48
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/28; B01D59/32; B01J; B01J21/00; B01J21/12; C; C01; C01B; C01B32/00; C01B32/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN THE PROCESS OF RELATIVELY CONCENTRATING ISOTOPES OF CARBON AND OF OXYGEN CONTAINED IN COMPOUNDS THEREOF BY REACTING CARBON DIOXIDE, CARBONIC ACID, BICARBONATE ION AND WATER IN THE PRESENCE OF A HETEROGENEOUS CATALYST BY FLOWING CARBON DIOXIDE INTO A MIXTURE OF CARBON DIOXIDE, CARBONIC ACID, BICARBONATE ION AND WATER, AND TAKING OFF FROM SAID HETEROGENEOUS CATALYST A FLUID ENRICHED WITH THE DESIRED ISOTOPE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID HETEROGENEOUS CATALYST AN ALUMINUM PACKING WHICH HAS BEEN REACTED WITH AN ALKALI SILICATE.
Claim 2
Dependent Claim
83 words
IN THE PROCESS OF RELATIVELY CONCENTRATING ISOTOPES OF CARBON AND OF OXYGEN CONTAINED IN COMPOUNDS THEREOF BY REACTING CARBON DIOXIDE, CARBONIC ACID, BICARBONATE ION AND WATER IN THE PRESENCE OF A HETEROGENEOUS CATALYST BY FLOWING CARBON DIOXIDE INTO A MIXTURE OF CARBON DIOXIDE, CARBONIC ACID, BICARBONATE ION AND WATER, AND TAKING OFF FROM SAID HETEROGENEOUS CATALYST A FLUID ENRICHED WITH THE DESIRED ISOTOPE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID HETEROGENEOUS CATALYST AN ALUMINUM PACKING WHICH HAS BEEN REACTED WITH AN ALKALI SILICATE.
References Cited (Backward Citations)
US2400409A
Cited
US2435796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |