US2992230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of substituted imidazolines
Assignee: Union Carbide Corp
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Filing: 1959-07-07
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Granted: 1961-07-11
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Expires: 1979-07-07
Abstract
No abstract record available.
Inventors
- 👤 George A Lescisin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:16
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FRO THE PRODUCTION OF 2-HEPTADECYL-2-IMIDAZOLINE WHICH COMPRISES BRINGING INTO REACTIVE ADMIXTRUE ETHYLENEDIAMINE WITH STEARIC ACID AT A TEMPERATURE OF FROM 150*C. TO ABOUT 350*C. A PRESSURE OF FROM 25 P.S.I.G. TO ABOUT 750 P.S.I.G., AND A MOL RATIO OF ETHYLENEDIAMINE TO STERARIC ACID OF FROM 2 TO 1 TO 10 TO 1, RSPECTIVELY, IN THE SUBSTANTIAL ABSENCE OF A REACTION AGENT.
Claim 2
Dependent Claim
63 words
A PROCESS FRO THE PRODUCTION OF 2-HEPTADECYL-2-IMIDAZOLINE WHICH COMPRISES BRINGING INTO REACTIVE ADMIXTRUE ETHYLENEDIAMINE WITH STEARIC ACID AT A TEMPERATURE OF FROM 150*C. TO ABOUT 350*C. A PRESSURE OF FROM 25 P.S.I.G. TO ABOUT 750 P.S.I.G., AND A MOL RATIO OF ETHYLENEDIAMINE TO STERARIC ACID OF FROM 2 TO 1 TO 10 TO 1, RSPECTIVELY, IN THE SUBSTANTIAL ABSENCE OF A REACTION AGENT.
References Cited (Backward Citations)
US2155878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |