US2962501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-substituted propyl piperidines and processes of preparing same
Assignee: Merck and Co Inc
•
Filing: 1956-09-19
•
Granted: 1960-11-29
•
Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank A Cutler
- 👤 James F Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:11
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/60; C07D211/62; C07D211/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER OF THE CLASS CONSISTING OF A 1-(Y-KETOY-PHENYLPROPYL)-4-PHENYL-4-CARBOALKOXYPIPERIDINE HAVING THE FORMULA
Claim 2
Dependent Claim
12 words
A MEMBER OF THE CLASS CONSISTING OF A 1-(Y-HYDROXYY-PHENYLPROPYL)-4-PHENYL-4-CARBOALKOXYPIPERIDINE HAVING THE FORMULA
References Cited (Backward Citations)
US2897204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |