US3192009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing nitric oxide from gases containing unsaturated hydrocarbons
Assignee: Hoechst AG
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Filing: 1962-01-31
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Granted: 1965-06-29
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Grosspietsch Horst
- 👤 Kaltenhauser Herbert
- 👤 Heuse Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:48
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/122; C07; C07C; C07C7/00; C07C7/148; C07C7/14808; C07C7/14816; C10K1/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE REMOVAL OF NITRIC OXIDE FROM CRACKED GASES WHICH CONTAIN 0.001 TO 0.2 PERCENT BY VOLUME OF NITRIC OXIDE AND MORE THAN 10 PERCENT BY VOLUME OF UNSATURATED HYDROCARBONS, WHICH COMPRISES COMPRESSING THE CRACKED GASES IN THE PRESENCE OF AT LEAST 0.5 PERCENT BY VOLUME OF MOLECULAR OXYGEN TO ABOUT 2 TO 50 ATMOSPERES AND WASHING, AT A TEMPERATURE BETWEEN 0 AND 50*C., THE NITROGEN DIOXIDE FORMED FROM THE GASES WITH AN ALKALINE TO NEUTRAL AQUEOUS MEDIUM.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE REMOVAL OF NITRIC OXIDE FROM CRACKED GASES WHICH CONTAIN 0.001 TO 0.2 PERCENT BY VOLUME OF NITRIC OXIDE AND MORE THAN 10 PERCENT BY VOLUME OF UNSATURATED HYDROCARBONS, WHICH COMPRISES COMPRESSING THE CRACKED GASES IN THE PRESENCE OF AT LEAST 0.5 PERCENT BY VOLUME OF MOLECULAR OXYGEN TO ABOUT 2 TO 50 ATMOSPERES AND WASHING, AT A TEMPERATURE BETWEEN 0 AND 50*C., THE NITROGEN DIOXIDE FORMED FROM THE GASES WITH AN ALKALINE TO NEUTRAL AQUEOUS MEDIUM.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |