Patent US3215741A successfully refreshed from Google Patents.
US3215741A
Expired / Lapsed
US
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Process for preparing maine oxides
Assignee: EIDP Inc
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Filing: 1963-01-08
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Granted: 1965-11-02
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Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 Albert F Chadwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
C; C07; C07C; C07C291/00; C07C291/02; C07C291/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
THE METHOD OF PRODUCING A WATER SOLUTION OF AN AMINE OXIDE, SAID METHOD COMPRISING REACTING UNDER AGITATION (1) A TERITARY ALIPHATIC AMINE OF THE FORMULA
Claim 2
Independent Claim
25 words
THE METHOD OF PRODUCING A WATER SOLUTION OF AN AMINE OXIDE, SAID METHOD COMPRISING REACTING UNDER AGITATION (1) A TERITARY ALIPHATIC AMINE OF THE FORMULA
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |