US2831028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of unsaturated 3-keto compounds of the p-menthane series
Assignee: Akzo Nobel Paints LLC
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Filing: 1956-12-17
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Granted: 1958-04-15
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Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Bain
- 👤 Wilbur Y Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:57
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE PROCESS FOR PRODUCING 3-KETO COMPOUNDS OF THE P-MENTHANE SERIES HAVING A DOUBLE BOND IN THE 1-2 POSITION WHICH COMPRISES SUBJECTING A COMPOUND OF THE PMENTHANE SERIES HAVING A HYDROXYL GROUP AT THE 1-POSITION AND A SINGLE NON-CONJUGATED RING DOUBLE BOND IN THE 2-3 POSITION TO A CHROMIC ACID OXIDATION.
Claim 2
Dependent Claim
50 words
THE PROCESS FOR PRODUCING 3-KETO COMPOUNDS OF THE P-MENTHANE SERIES HAVING A DOUBLE BOND IN THE 1-2 POSITION WHICH COMPRISES SUBJECTING A COMPOUND OF THE PMENTHANE SERIES HAVING A HYDROXYL GROUP AT THE 1-POSITION AND A SINGLE NON-CONJUGATED RING DOUBLE BOND IN THE 2-3 POSITION TO A CHROMIC ACID OXIDATION.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |