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US3666408A
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US
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Process for the production of oxides of nitrogen
Assignee: ARISTID V GROSSE
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Filing: 1970-02-16
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Granted: 1972-05-30
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Expires: 1990-02-16
Abstract
Abstract AN IMPROVED PROCESS FOR PRODUCING OXIDES OF NITROGEN SUCH AS MITRIC OXIDE WHICH INCLUDES (A) REACTING NITROGEN PLASMA WITH OXYGEN PLASMA, THE PLASMA HAVING BEEN FORMED BY AN ELECTRIC ARC DISCHARGE, AND (B) COOLING THE RESULTING GASEOUS REACTION MIXTURE FROM THE PLASMA STATE TO A TEMPERATURE BELOW THE DISSOCIATION TEMPERATURE OF NITRIC OXIDE BY (1) EXPANDING THE GASEOUS MIXTURE AT AN EXPENSION RATIO IN THE RANGE OF FROM 30:1 TO 200:1, THE EXPANSION BEGINNING PRIOR TO THE LOSS OF THE PLASMA STATE, AND (2) CONTACTING THE EXPANDED REACTION MIXTURE WITH COOLER RECYCLE GAS.
Inventors
- 👤 Aristid V Grosse
- 👤 Charles S Stokes
- 👤 Edward W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:58
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/20; C01B21/203; H; H01; H01J; H01J37/00; H01J37/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |