US2914565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Products having ambergris aroma and a process of making same
Assignee: Dragoco Gerberding and Co GmbH
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Filing: 1955-07-13
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Granted: 1959-11-24
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Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Ohloff Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0042; C11B9/0046; C11B9/0049; C11B9/0053
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
IN A PROCESS OF PRODUCING OXYGEN CONTAINING PRODUCTS HAVING AMBERGRIS AROMA, THE STEPS COMPRISING GRADUALLY ADING, WHILE STIRRING, A SOLUTION OF CHROMIUM TRIOXIDE IN ACETIC ACID TO A SOLUTION OF A 2,5,5,9-TETRAMETHYL DECAHYDRONAPHTHALENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SCLAREOL, MANOOL, AMBREIN, SCLAREOL OXIDE, AND MANOYL OXIDE IN AN ORGANIC SOLVENT SUBSTANTIALLY NOT AFFECTED BY THE ACTION OF SAID CHROMIUM TRIOXIDE AT AN ELEVATED TEMPERATURE NOT SUBSTANTIALLY EXCEEDING 60* C., THE AMOUNTS OF CHROMIUM TRIOXIDE ADDED BEING EQUIVALENT TO AN AMOUNT NOT EXCEEDING ABOUT 6 ATOMS OF OXYGEN PER 1 MOL OF SAID 2,5,5,9-TETRAMETHYL DECAHYDRONAPHTHALENE COMPOUND, AND RECOVERING THE ODORIFEROUS OXIDATION PRODUCT HAVING AMBERGRIS AROMA FROM THE OXIDATION MIXTURE.
References Cited (Backward Citations)
US2809996A
Cited
US2683721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |