US2496958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-alkyl-benzylaminopiperidines and their production
Assignee: Pharmacia and Upjohn Co
•
Filing: 1949-06-18
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Granted: 1950-02-07
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Expires: 1969-06-18
Abstract
No abstract record available.
Inventors
- 👤 Robert H Reitsema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:38
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/56; C07D211/58; C07D211/68; C07D211/72; C07D211/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE 1-ALKYL-BENZYLAMINOPIPERIDINES HAVING THE FORMULA.
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE 1-ALKYL-BENZYLAMINOPIPERIDINES HAVING THE FORMULA.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |