Patent US2908692A successfully refreshed from Google Patents.
US2908692A
Expired / Lapsed
US
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2, 4-ditertiarybutyl-4, 6-dimethoxy-2, 5-cyclohexadien-1-one
Assignee: Dow Chemical Co
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Filing: 1957-10-04
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Granted: 1959-10-13
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Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert B Richert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:18
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/753; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
2,4-DITERTIARYBUTYL-4,6-DIMETHOXY-2,5-CYCLOHEXADIEN1-ONE CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
5 words
2,4-DITERTIARYBUTYL-4,6-DIMETHOXY-2,5-CYCLOHEXADIEN1-ONE CORRESPONDING TO THE FORMULA
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |