Patent JPS5573570A successfully refreshed from Google Patents.
US2904550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-phenylpiperidines and their preparation
Assignee: Eli Lilly and Co
•
Filing: 1958-01-17
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Granted: 1959-09-15
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Expires: 1978-01-17
Abstract
No abstract record available.
Inventors
- 👤 Pohland Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:45
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A COMPOUND OF THE GROUP CONSISTING OF AN OXYGENATED 4-PHENYLPIPERIDINE AND NON-TOXIC PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, SAID OXYGENATED 4-PHENYLPIPERIDINE BEING REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
27 words
A COMPOUND OF THE GROUP CONSISTING OF AN OXYGENATED 4-PHENYLPIPERIDINE AND NON-TOXIC PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, SAID OXYGENATED 4-PHENYLPIPERIDINE BEING REPRESENTED BY THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2850500A
Cited
US2846437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |