Patent US3226399A successfully refreshed from Google Patents.
US3226399A
Expired / Lapsed
US
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Substituted 3-formylindoles
Assignee: Wyeth Holdings LLC
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Filing: 1964-08-07
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Granted: 1965-12-28
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jr George Rodger Allen
- 👤 Remers William Alan
- 👤 Weiss Martin Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:13
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/49; C07C205/56; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D209/10; C07D209/12; C07D209/30; C07D209/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US3042684A
Cited
GB869775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |