Patent US2597027A successfully refreshed from Google Patents.
US2597027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nitropauaffins
Assignee: —
•
Filing: —
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Granted: 1952-05-20
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Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:32
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/06; C07C201/08; C07C205/00; C07C205/01; C07C205/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE PROCESS OF MANUFACTURING NITROGEN DERIVATIVES FROM PARAFFIN HYDROCARBONS WHICH COMPRISES THE STEPS OF PASSING AMMONIA AND AN OXIDIZING GAS THROUGH A HEATING ZONE AT A TEMPERATURE BETWEEN ABOUT 800* C. AND ABOUT 1000* C. AND AT A PRESSURE BETWEEN ABOUT 10 AND ABOUT 15 ATMOSPHERES IN THE PRESENCE OF A CATALYTIC MATERIAL FOR A REACTION TIME EFFECTIVE TO CONVERT A SUBSTANTIAL PROPORTION OF THE AMMONIA TO NITRIC ACID IN THE VAPOR STATE, CONTACTING THE VAPORS THUS PRODUCED IMMEDIATELY UPON FORMATION WITH AT LEAST ONE GASEOUS PARAFFIN HYDROCARBON AT A TEMPERATURE SLIGHTLY BELOW THE CRACKING TEMPERATURE OF SAID PARAFFIN HYDROCARBON TO FORM THE CORRESPONDING NITROSO-PARAFFIN AND IN AN AMOUNT IN EXCESS OF THAT REQUIRED TO EFFECT SUBSTANTIALLY COMPLETE CONSUMPTION OF NITRO ACID THUS FORMED, SUBJECTING SAID NITROSO-PARAFFIN TO FURTHER OXIDATION AT A REDUCED TEMPERATURE WITH AN ADDITIONAL QUANTITY OF SAID OXIDIZING GAS TO FORM THE CORRESPONDING NITRO-PARAFFIN, AND RECOVERING SAID NITRO-PARAFFIN.
Claim 2
Dependent Claim
151 words
THE PROCESS OF MANUFACTURING NITROGEN DERIVATIVES FROM PARAFFIN HYDROCARBONS WHICH COMPRISES THE STEPS OF PASSING AMMONIA AND AN OXIDIZING GAS THROUGH A HEATING ZONE AT A TEMPERATURE BETWEEN ABOUT 800* C. AND ABOUT 1000* C. AND AT A PRESSURE BETWEEN ABOUT 10 AND ABOUT 15 ATMOSPHERES IN THE PRESENCE OF A CATALYTIC MATERIAL FOR A REACTION TIME EFFECTIVE TO CONVERT A SUBSTANTIAL PROPORTION OF THE AMMONIA TO NITRIC ACID IN THE VAPOR STATE, CONTACTING THE VAPORS THUS PRODUCED IMMEDIATELY UPON FORMATION WITH AT LEAST ONE GASEOUS PARAFFIN HYDROCARBON AT A TEMPERATURE SLIGHTLY BELOW THE CRACKING TEMPERATURE OF SAID PARAFFIN HYDROCARBON TO FORM THE CORRESPONDING NITROSO-PARAFFIN AND IN AN AMOUNT IN EXCESS OF THAT REQUIRED TO EFFECT SUBSTANTIALLY COMPLETE CONSUMPTION OF NITRO ACID THUS FORMED, SUBJECTING SAID NITROSO-PARAFFIN TO FURTHER OXIDATION AT A REDUCED TEMPERATURE WITH AN ADDITIONAL QUANTITY OF SAID OXIDIZING GAS TO FORM THE CORRESPONDING NITRO-PARAFFIN, AND RECOVERING SAID NITRO-PARAFFIN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |