Patent US3879425A successfully refreshed from Google Patents.
US3879425A
Expired / Lapsed
US
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Ethylene acetal of 3-phenyl-4-pentenal
Assignee: International Flavors and Fragrances Inc
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Filing: 1974-03-25
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Granted: 1975-04-22
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Expires: 1994-03-25
Abstract
Abstract Novel di-lower alkyl or lower alkylene acetals of 2- and 3phenyl-pentenals useful in altering the aroma and/or organoleptic characteristics of foodstuff, foodstuff flavor and aroma, tobacco, tobacco flavor and aroma, perfume and perfumed compositions, and methods for preparing said acetals.
Inventors
- 👤 John B Hall
- 👤 Manfred Vock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:06
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/12; A; A23; A23L; A23L27/00; A23L27/20; A23L27/205; A23L27/2052; C07C; C07C45/00; C07C45/51; C07C45/516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
3-PHENYL-4-PENTENAL ETHYLENE ACETAL HAVING THE STRUCTURE:
Claim 2
Dependent Claim
6 words
3-PHENYL-4-PENTENAL ETHYLENE ACETAL HAVING THE STRUCTURE:
References Cited (Backward Citations)
US3636113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |