Patent US3217029A successfully refreshed from Google Patents.
US3217029A
Expired / Lapsed
US
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Method of preparing substituted indole derivatives
Assignee: Warner Lambert Co LLC
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Filing: 1961-06-27
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Granted: 1965-11-09
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John Shavel
- 👤 Strandtmann Maximilian Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:01
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
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Cited
US2189383A
Cited
CH245987A
Cited
US2852553A
Cited
US2947757A
Cited
US2833810A
Cited
US2852527A
Cited
US2955108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |