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Patent US3428414A successfully refreshed from Google Patents.
US3428414A
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Process for removing nitric oxide from gaseous mixtures
Assignee: United States Steel Corp
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Filing: 1966-06-02
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Granted: 1969-02-18
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Expires: 1986-06-02
Abstract
No abstract record available.
Inventors
- 👤 Werner H Baum
- 👤 Joseph G Crist
- 👤 Elliott V Nagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/54; B01D53/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A PROCESS FOR THE REMOVAL OF NITRIC OXIDE FROM A GAS MIXTURE CONTAINING OXYGEN AND REACTIVE ORGANIC MATERIAL, INCLUDING RETENTION OF THE GAS MIXTURE FOR A SHORT TIME IN A REACTION CHAMBER AT AN ELEVATED TEMPERATURE, THE IMPROVEMENT COMPRISING RETAINING SAID GAS MIXTURE IN SAID CHAMBER IN ADMIXTURE WITH A GAS CONTAINING NITROGEN DIOXIDE, THE VOLUMETRIC RATIO OF NITROGEN DIOXIDE TO NITRIC OXIDE BEING AT LEAST ABOUT 0.06.
Claim 2
Dependent Claim
69 words
IN A PROCESS FOR THE REMOVAL OF NITRIC OXIDE FROM A GAS MIXTURE CONTAINING OXYGEN AND REACTIVE ORGANIC MATERIAL, INCLUDING RETENTION OF THE GAS MIXTURE FOR A SHORT TIME IN A REACTION CHAMBER AT AN ELEVATED TEMPERATURE, THE IMPROVEMENT COMPRISING RETAINING SAID GAS MIXTURE IN SAID CHAMBER IN ADMIXTURE WITH A GAS CONTAINING NITROGEN DIOXIDE, THE VOLUMETRIC RATIO OF NITROGEN DIOXIDE TO NITRIC OXIDE BEING AT LEAST ABOUT 0.06.
References Cited (Backward Citations)
US3262751A
Cited
US3192009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |