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US2836624A
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3, 4-dihydro-2-(3', 4'-dihydro-6'-methoxy-1'-naphthyl)-6-methoxy-1 (2)-naphthalenoneand process of preparation
Assignee: GD Searle LLC
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Filing: 1957-02-25
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Granted: 1958-05-27
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert E Gentry
- 👤 Robert R Burtner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:24
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/753; C07C49/755; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
3,4-DIHYDRO-2-(3'',4''-DIHYDRO-6''-METHOXY-1''-NAPTHYL)6-METHOXY-1(2) -NAPTHALENONE.
Claim 2
Dependent Claim
2 words
3,4-DIHYDRO-2-(3'',4''-DIHYDRO-6''-METHOXY-1''-NAPTHYL)6-METHOXY-1(2) -NAPTHALENONE.
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |