Patent US4827228A successfully refreshed from Google Patents.
Patent US3560571A successfully refreshed from Google Patents.
US3560571A
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US
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Novel photochemical reaction of 4-caranone and novel reaction products resulting therefrom
Assignee: Procter and Gamble Co
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Filing: 1967-05-29
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Granted: 1971-02-02
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Expires: 1987-05-29
Abstract
Abstract PHOTOCHEMICAL REACTION OF 4-CARANONE TO OBTAIN THE NOVEL COMPOUNDS, 2-(2''METHYL-2''-BUT-3''-ENYL)-4-METHYLCYCLOBUTANONE AND 2,2,5-TRIMETHYL-3-VINYLCYCLOPENTANONE, AND THE PROCESS OF CONVERTING 3-CARENE TO 4-CARANONE BY EPOXIDIZING 3-CARENE AND, SUBSEQUENTLY, TREATING THAT PRODUCT WITH A LEWIS ACID CATALYST.
Inventors
- 👤 Paul J Kropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:08
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0026; C11B9/003; C07; C07C; C07C45/00; C07C45/27; C07C45/29; C07C45/292; C07C45/56; C07C45/57; C07C45/58; C07C45/61; C07C45/67; C07C45/78; C07C45/85; C07C49/00; C07C49/587; C07C49/647; C07D; C07D303/00; C07D303/02; C07D303/04
Claims Analysis
Total Claims: 0
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |