US2495424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nitro olefins
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1945-10-22
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Granted: 1950-01-24
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Expires: 1965-10-22
Abstract
No abstract record available.
Inventors
- 👤 Scaife Charles William
- 👤 Baldock Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/06; C07C201/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR THE PRODUCTION OF NITRO OLEFINES WHICH COMPRISES REACTING A SATURATED ALIPHATIC NITRO HYDROCARBON OF 2 TO 8 CARBON ATOMS HAVING THE FORMULA SELECTED FROM THE GROUP CONSISTING OF: WHEREIN R, R'' AND R" ARE MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS, WITH A BASIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND UREA UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF AN INERT ORGANIC SOLVENT FOR SAID NITRO HYDROCARBON.
Claim 2
Dependent Claim
77 words
A PROCESS FOR THE PRODUCTION OF NITRO OLEFINES WHICH COMPRISES REACTING A SATURATED ALIPHATIC NITRO HYDROCARBON OF 2 TO 8 CARBON ATOMS HAVING THE FORMULA SELECTED FROM THE GROUP CONSISTING OF: WHEREIN R, R'' AND R" ARE MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS, WITH A BASIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND UREA UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS IN THE PRESENCE OF AN INERT ORGANIC SOLVENT FOR SAID NITRO HYDROCARBON.
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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |