US3754037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the acetylation of chamigrenes
Assignee: Givaudan Roure Corp
•
Filing: 1971-01-18
•
Granted: 1973-08-21
•
Expires: 1991-01-18
Abstract
Abstract A- AND B- CHAMIGRENES WHEN TREATED WITH ACETIC ANHYDRIDE IN THE PRESENCE OF POLYPHOSPHORIC ACID YIELD THE NOVEL 4 -ACETO -6,8A-ETHANO-1,1,6-TRIMETHYL-1,2,3,5,6, 7,8,8A-OCTAHYDRONAPHTHALENE. THE NOVEL ACETYL COMPOUND THUS PRODUCED IS EXTREMELY USEFUL AS AN ODORANT AND FIXATIVE IN PERFUME COMPOUNDING.
Inventors
- 👤 G Kitchens
- 👤 A Hochstetler
- 👤 K Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:34
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0042; C07; C07C; C07C49/00; C07C49/527; C07C49/553; C07C5/00; C07C5/22; C07C5/27; C07C5/29; C07C5/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |