US3634491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 3 5-dialkyl resorcylic acids and esters
Assignee: International Flavors and Fragrances Inc
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Filing: 1968-08-30
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Granted: 1972-01-11
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Expires: 1988-08-30
Abstract
Abstract PROCESS FOR THE PREPARATION OF DI-ALKYL RING-SUBSTITUTED RESORCYLIC ACIDS AND ESTERS THEREOF WHICH COMPRISES REACTING A DI-ALKYL RING-SUBSTITUTED DIHYDRO RESORCYLIC ACID OR ESTER WITH AN OXIDATIVE CHLORINE SOURCE. CERTAIN NOVEL DIALKYL RING SUBSTITUTED RESORCYLIC ACIDS AND ESTERS WHICH ARE USEFUL IN PERFUMERY ARE OBTAINED.
Inventors
- 👤 James Douglas Grossman
- 👤 Robert Santora De Simone
- 👤 Lambertus Gerke Heeringa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:39
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0061; C07; C07C; C07C51/00; C07C51/347
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |