Patent US3431305A successfully refreshed from Google Patents.
US3431305A
Expired / Lapsed
US
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Process for the production of 2-(propenyl)-2-cyclohexenone
Assignee: Eastman Kodak Co
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Filing: 1965-02-08
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Granted: 1969-03-04
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Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Thompson
- 👤 Thomas E Buckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:14
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/02; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71; C07C49/00; C07C49/587; C07C49/647; C07C49/653; C11; C11B; C11B9/00; C11B9/0026; C07C2601/00; C07C2601/12; C07C2601/14; C07C2601/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
THE PROCESS WHICH COMPRISES CONTACTING CYCLOHEXANONE WITH PROPYNYL ALCOHOL IN THE PRESENCE OF AN ACIDIC CATALYST AT A TEMPERATURE OF 70-200*C. AND OBTAINING 2(PROPENYL)-2-CYCLOHEXENONE.
Claim 2
Dependent Claim
24 words
THE PROCESS WHICH COMPRISES CONTACTING CYCLOHEXANONE WITH PROPYNYL ALCOHOL IN THE PRESENCE OF AN ACIDIC CATALYST AT A TEMPERATURE OF 70-200*C. AND OBTAINING 2(PROPENYL)-2-CYCLOHEXENONE.
References Cited (Backward Citations)
GB804089A
Cited
US3225102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |