US3332999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of amine oxides
Assignee: Ethyl Corp
•
Filing: 1963-12-10
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Granted: 1967-07-25
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Expires: 1983-12-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Mitchell
- 👤 Thomas H Coffield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:17
CPC Classifications
C; C07; C07C; C07C291/00; C07C291/02; C07C291/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
PROCESS FOR THE PREPARATION OF AN AMINE OXIDE, SAID PROCESS COMPRISING REACTING OZONE WITH AN AMINE HAVING THE FORMULA R1R2R3N WHEREIN R1 IS AN ACYCLIC ALKYL RADICAL HAVING FROM 10 TO ABOUT 20 CARBON ATOMS AND R2 AND R3 ARE ALKYL RADICALS HAVING FROM 1 TO ABOUT 4 CARBON ATOMS; SAID PROCESS BEING CARRIED OUT IN THE PRESENCE OF A SUBSTANTIALLY NON-AQUEOUS, LIQUID REACTION MEDIUM CONSISTING ESSENTIALLY OF A SATURATED ALCOHOL HAVING FROM 1 TO ABOUT 4 CARBON ATOMS, AND AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1* TO ABOUT 40*C.
Claim 2
Dependent Claim
93 words
PROCESS FOR THE PREPARATION OF AN AMINE OXIDE, SAID PROCESS COMPRISING REACTING OZONE WITH AN AMINE HAVING THE FORMULA R1R2R3N WHEREIN R1 IS AN ACYCLIC ALKYL RADICAL HAVING FROM 10 TO ABOUT 20 CARBON ATOMS AND R2 AND R3 ARE ALKYL RADICALS HAVING FROM 1 TO ABOUT 4 CARBON ATOMS; SAID PROCESS BEING CARRIED OUT IN THE PRESENCE OF A SUBSTANTIALLY NON-AQUEOUS, LIQUID REACTION MEDIUM CONSISTING ESSENTIALLY OF A SATURATED ALCOHOL HAVING FROM 1 TO ABOUT 4 CARBON ATOMS, AND AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1* TO ABOUT 40*C.
References Cited (Backward Citations)
GB437566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |