US2692879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing n-substituted morpholines
Assignee: Atlas Powder Co
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Filing: 1950-11-03
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Granted: 1954-10-26
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Expires: 1970-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Hales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:01
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF PREPARING N-SUBSTITUTED MORPHOLINES WHICH COMPRISES HEATING AND REACTING ONE MOLAR PROPORTION OF AN ACYCLIC ALIPHATIC AMINE CONTAINING FROM 10 TO 20 CARBON ATOMS WITH FROM 2 TO 5 MOLAR PROPORTIONS OF A BB'' DICHLOR-LOWER ALKYL ETHER, IN THE PRESENCE OF AN ACID ACCEPTOR TO NEUTRALIZE THE ACID FORMED IN THE REACTION, AND IN THE PRESENCE OF WATER TO DISSOLVE THE FORMED SALT, AND RECOVERING THE SAID N-SUBSTITUTED MORPHOLINES FROM THE REACTION MIXTURE.
Claim 2
Independent Claim
75 words
THE METHOD OF PREPARING N-SUBSTITUTED MORPHOLINES WHICH COMPRISES HEATING AND REACTING ONE MOLAR PROPORTION OF AN ACYCLIC ALIPHATIC AMINE CONTAINING FROM 10 TO 20 CARBON ATOMS WITH FROM 2 TO 5 MOLAR PROPORTIONS OF A BB'' DICHLOR-LOWER ALKYL ETHER, IN THE PRESENCE OF AN ACID ACCEPTOR TO NEUTRALIZE THE ACID FORMED IN THE REACTION, AND IN THE PRESENCE OF WATER TO DISSOLVE THE FORMED SALT, AND RECOVERING THE SAID N-SUBSTITUTED MORPHOLINES FROM THE REACTION MIXTURE.
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) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |