US3141739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification
Assignee: Nuclear Technical Services Corp
•
Filing: 1959-05-14
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Granted: 1964-07-21
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Expires: 1979-05-14
Abstract
No abstract record available.
Inventors
- 👤 Harold A Ohlgren
- 👤 John G Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:35
CPC Classifications
B; B01; B01D; B01D46/00; B01D53/00; B01D53/34; C; C01; C01B; C01B23/00; C01B3/00; C01B3/50; C01B3/56; G; G01; G01N; G01N27/00; G01N27/62; C01B2203/00; C01B2203/04; C01B2203/042; C01B2203/0465; C01B2203/0475; C01B2203/0495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE PROCESS OF PURIFYING A NOBLE GAS, SAID PROCESS COMPRISING COMPRESSING AND COOLING SAID GAS; REMOVING SOLID, LIQUID, AND HYDROCARBON CONSTITUTENTS FROM SAID GAS; CONTACTING THE GAS WITH A CATALYST FOR THE PURPOSE OF EFFECTING COMBINATION OF HYDROGEN AND OXYGEN IMPURITIES TO FORM WATER AND EFFECTING COMBINATION OF CARBON MONOXIDE AND OXYGEN IMPURITIES TO FORM CARBON DIOXIDE: DRYING AND ABSORBING CARBON DIOXIDE FROM SAID GAS; CONTACTING SAID GAS WITH MANGANESE AT ABOUT 400-500*F.; CONTACTING SAID GAS WITH CHROMIUM AT ABOUT 500*-700*F; CONTACTING SAID GAS WITH TITANIUM AT ABOUT 1200*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 800*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 1200*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 800*F.; AND COOLING SAID GAS, AT A PLURALITY OF POINTS IN SAID PROCESS, TO A TEMPERATURE SUFFICIENT TO CONDENSE WATER AND CARBON DIOXIDE INSAID GAS.
Claim 2
Dependent Claim
137 words
THE PROCESS OF PURIFYING A NOBLE GAS, SAID PROCESS COMPRISING COMPRESSING AND COOLING SAID GAS; REMOVING SOLID, LIQUID, AND HYDROCARBON CONSTITUTENTS FROM SAID GAS; CONTACTING THE GAS WITH A CATALYST FOR THE PURPOSE OF EFFECTING COMBINATION OF HYDROGEN AND OXYGEN IMPURITIES TO FORM WATER AND EFFECTING COMBINATION OF CARBON MONOXIDE AND OXYGEN IMPURITIES TO FORM CARBON DIOXIDE: DRYING AND ABSORBING CARBON DIOXIDE FROM SAID GAS; CONTACTING SAID GAS WITH MANGANESE AT ABOUT 400-500*F.; CONTACTING SAID GAS WITH CHROMIUM AT ABOUT 500*-700*F; CONTACTING SAID GAS WITH TITANIUM AT ABOUT 1200*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 800*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 1200*F.; CONTACTING SAID GAS WITH CALCIUM AT ABOUT 800*F.; AND COOLING SAID GAS, AT A PLURALITY OF POINTS IN SAID PROCESS, TO A TEMPERATURE SUFFICIENT TO CONDENSE WATER AND CARBON DIOXIDE INSAID GAS.
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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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |