Patent US3285915A successfully refreshed from Google Patents.
US3285915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aminovinyl ketones
Assignee: Eastman Kodak Co
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Filing: 1964-01-02
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Granted: 1966-11-15
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Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 James C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:35
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
THE METHOD WHICH COMPRISES HEATING A 3-ALKOXYCYCLOBUTANONE OF THE FORMULA
Claim 2
Independent Claim
10 words
THE METHOD WHICH COMPRISES HEATING A 3-ALKOXYCYCLOBUTANONE OF THE FORMULA
Claim 3
Independent Claim
15 words
THE METHOD OF PREPARING 4-METHYL-1-MORPHOLINO-1PENTEN-3-ONE WHICH COMPRISES HEATING 3-ETHOXY-2,2-DIMETHYLCYCLOBUTANONE WITH MORPHOLINO IN APPROXIMATELY EQUIMOLAR PROPORTIONS.
Claim 4
Independent Claim
15 words
THE METHOD OF PREPARING 4-METHYL-1-MORPHOLINO-1PENTEN-3-ONE WHICH COMPRISES HEATING 3-ETHOXY-2,2-DIMETHYLCYCLOBUTANONE WITH MORPHOLINO IN APPROXIMATELY EQUIMOLAR PROPORTIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |