Patent US2995492A successfully refreshed from Google Patents.
US2995492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piperidine derivatives with psychotogenic activity
Assignee: LAKESIDE LAB Inc
•
Filing: 1957-12-23
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Granted: 1961-08-08
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 John H Biel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:18
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A PHARMACEUTICAL COMPOSITION COMPRISING A NONTOXIC ACID ADDITION SALT OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
15 words
A PHARMACEUTICAL COMPOSITION COMPRISING A NONTOXIC ACID ADDITION SALT OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
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US2477937A
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US2553002A
Cited
US2648667A
Cited
US2792399A
Cited
US2816895A
Cited
US2844591A
Cited
US2918408A
Cited
US2918406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |