US3055732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing oxygen, carbon monoxide, carbon dioxide, and water
Assignee: Houilleres du Bassin du Nord et du Pas de Calais
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Filing: 1960-07-18
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Granted: 1962-09-25
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Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 Delassus Marcel
- 👤 Lefrancois Bernard
- 👤 Vaniscotte Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:21
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; C10K1/165; B; B01; B01D; B01D53/00; B01D53/34; C01; C01B; C01B3/00; C01B3/02; C01B3/025; C07; C07C; C07C7/00; C07C7/148; C07C7/14833; C08; C08F; C08F10/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
PROCESS FOR THE REMOVAL OF OXYGEN, CARBON MONOXIDE, CARBON DIOXIDE AND WATER AS IMPURITIES FROM GASEOUS MIXTURES, CONSISTING OF CONTACTING THE GASEOUS MIXTURE WIHT A SOLUTION OF AT LEAST ONE ALKALI METAL AMIDE IN LIQUID AMMONIA AT A TEMPERATURE BETWEEN APPROXIMATELY -70* C. TO 100* C. AND UNDER A PRESSURE BETWEEN APPROXIMATELY 50 KG./CM.2 AND 500 KG./CM.2.
Claim 2
Dependent Claim
57 words
PROCESS FOR THE REMOVAL OF OXYGEN, CARBON MONOXIDE, CARBON DIOXIDE AND WATER AS IMPURITIES FROM GASEOUS MIXTURES, CONSISTING OF CONTACTING THE GASEOUS MIXTURE WIHT A SOLUTION OF AT LEAST ONE ALKALI METAL AMIDE IN LIQUID AMMONIA AT A TEMPERATURE BETWEEN APPROXIMATELY -70* C. TO 100* C. AND UNDER A PRESSURE BETWEEN APPROXIMATELY 50 KG./CM.2 AND 500 KG./CM.2.
References Cited (Backward Citations)
US1685733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |