Patent US3280145A successfully refreshed from Google Patents.
US3280145A
Expired / Lapsed
US
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New indole derivatives and their acid addition salts
Assignee: Sandoz AG
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Filing: 1964-06-01
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Granted: 1966-10-18
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Hofmann Albert
- 👤 Troxler Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:31
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INDOLE DERIVATIVE OF THE FORMULA:
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN INDOLE DERIVATIVE OF THE FORMULA:
References Cited (Backward Citations)
US2703325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |