US2831882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of nitrite esters
Assignee: EIDP Inc
•
Filing: 1955-09-16
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Granted: 1958-04-22
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Expires: 1975-09-16
Abstract
No abstract record available.
Inventors
- 👤 Spaeth Charles Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:19
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE PREPARATION OF NITRITE ESTERS WHICH COMPRISES REACTING A VAPORIZED ALCOHOL WITH FROM 0.4 TO 0.6 MOLE OF NITROGEN DIOXIDE AND 0.4 TO 2.0 MOLES OF NITRIC OXIDE PER MOLE OF ALCOHOL IN THE PRESENCE OF FROM 2 TO 25 MOLES OF A DILUENT SELECTED FROM THE GROUP CONSISTING OF WATER, NITROGEN AND CARBON DIOXIDE PER MOLE OF A ALCOHOL A TEMPERATURE BETWEEN 100*C. AND 420*C. THE CONTACT TIME OF SAID REACTANTS BEING 1-10 SECONDS.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE PREPARATION OF NITRITE ESTERS WHICH COMPRISES REACTING A VAPORIZED ALCOHOL WITH FROM 0.4 TO 0.6 MOLE OF NITROGEN DIOXIDE AND 0.4 TO 2.0 MOLES OF NITRIC OXIDE PER MOLE OF ALCOHOL IN THE PRESENCE OF FROM 2 TO 25 MOLES OF A DILUENT SELECTED FROM THE GROUP CONSISTING OF WATER, NITROGEN AND CARBON DIOXIDE PER MOLE OF A ALCOHOL A TEMPERATURE BETWEEN 100*C. AND 420*C. THE CONTACT TIME OF SAID REACTANTS BEING 1-10 SECONDS.
References Cited (Backward Citations)
US2298387A
Cited
US2739166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |