Patent US2824896A successfully refreshed from Google Patents.
US2824896A
Expired / Lapsed
US
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Ketone and alcohols
Assignee: F Hoffmann La Roche AG
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Filing: 1955-08-18
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Granted: 1958-02-25
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Expires: 1975-08-18
Abstract
No abstract record available.
Inventors
- 👤 Surmatis Joseph Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:49
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0007; C11B9/0015; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C07C45/00; C07C45/61; C07C45/62; C07C49/00; C07C49/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
6,8-DIMETHYL-2-NONANONE. 2. 3,7,9-TRIMETHYL-1-DECYN-3-OL. 3. 3,7,9-TRIMETHYL-1-DECEN-3-OL.
Claim 2
Dependent Claim
5 words
6,8-DIMETHYL-2-NONANONE. 2. 3,7,9-TRIMETHYL-1-DECYN-3-OL. 3. 3,7,9-TRIMETHYL-1-DECEN-3-OL.
References Cited (Backward Citations)
DE740987C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |