Patent US3839232A successfully refreshed from Google Patents.
US3839232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragrant polycyclic ketones
Assignee: Firmenich SA
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Filing: 1971-07-09
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Granted: 1974-10-01
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Expires: 1991-07-09
Abstract
Abstract 3-Thuyopsanone and its stereo isomers(-)-3-thuyopsanone and (-)3-isothuyospsanone are prepared by oxidation of the sesquiterpene hydrocarbon thuyopsene (or its stereo isomers), or by oxidation, thermal rearrangement, saponification or acid conversion of novel intermediates derived from said hydrocarbon. The tricyclic ketones thus prepared have odoriferous properties which can be used to advantage in perfumes and perfumed products such as cosmetics, soaps, detergents, and the like.
Inventors
- 👤 G Ohloff
- 👤 H Strickler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:41
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PERFUME COMPOSITION COMPRISING IN A PERFUME CARRIER, AN EFFECTIVE FRAGRANCE IMPARTING AMOUNT OF AT LEAST ONE CONFIGURATIONAL ISOMER OF THE KETONE OF THE FORMULA
Claim 2
Dependent Claim
25 words
A PERFUME COMPOSITION COMPRISING IN A PERFUME CARRIER, AN EFFECTIVE FRAGRANCE IMPARTING AMOUNT OF AT LEAST ONE CONFIGURATIONAL ISOMER OF THE KETONE OF THE FORMULA
References Cited (Backward Citations)
US3144465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |