US2815381A
Expired / Lapsed
US
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Alkyl substituted hydrindacenones
Assignee: Givaudan Roure Corp
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Filing: 1955-05-10
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Granted: 1957-12-03
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Expires: 1975-05-10
Abstract
No abstract record available.
Inventors
- 👤 Marion S Carpenter
- 👤 Jr William M Easter
- 👤 Thomas F Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/657; C07C49/665; C07C49/675; C11; C11B; C11B9/00; C11B9/0042; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
ALKYL-SUBSTITUTED HYDRINDACENONES SELECTED FROM THE GORUP CONSISTING OF AS-HYDRINDACENE-3-ONES AND S-HYDRINDACENE-1-ONES HAVING LOWER ALKYL SUBSTITUENTS IN THE NONKETO FIVE-MEMBERED RING SO AS TO YIELD AT LEAST ONE QUATERNARY CARBON ATOM IN SAID RING.
Claim 2
Dependent Claim
33 words
ALKYL-SUBSTITUTED HYDRINDACENONES SELECTED FROM THE GORUP CONSISTING OF AS-HYDRINDACENE-3-ONES AND S-HYDRINDACENE-1-ONES HAVING LOWER ALKYL SUBSTITUENTS IN THE NONKETO FIVE-MEMBERED RING SO AS TO YIELD AT LEAST ONE QUATERNARY CARBON ATOM IN SAID RING.
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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |