US3110563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of high percentage nitric oxide
Assignee: BASF SE
•
Filing: 1959-03-31
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Granted: 1963-11-12
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Expires: 1979-03-31
Abstract
No abstract record available.
Inventors
- 👤 Krauss Kurt
- 👤 Diekmann Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:54
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/20; C01B21/24; C01B21/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A PROCESS FOR PRODUCTION OF HIGH PERCENTAGE NITRIC OXIDE WHICH COMPRISES REACTING A MIXTURE OF OXYGEN AND AMMONIA AT A VOLUME RATIO OF 1.28-1.40:1, RESPECTIVELY, ON A PLATINUM CATALYST AT A TEMPERATURE BETWEEN 750*C. AND 1000*C. IN THE PRESENCE OF STEAM TO FORM OXIDES OF NITROGEN CONSISTING MAINLY OF NITRIC OXIDE, CONDENSING THE STEAM IN THE REACTION MIXTURE AND FORMING DILUTE NITRIC ACID SOLUTION BY ABSORPTION IN SAID CONDENSATE OF NITROGEN DIOXIDE FORMED DURING SAID REACTION, AND WASHING THE REACTION GAS WITH SAID DILUTE NITRIC ACID SOLUTION TO REMOVE BY ABSORBTION FURTHER AMOUNTS OF NITROGEN DIOXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |