US2782206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 2-dimethyl-alpha, alpha-diphenyl-1-pyrrolidene-alkanoamides
Assignee: Pharmacia and Upjohn Co
•
Filing: 1953-10-21
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Granted: 1957-02-19
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Expires: 1973-10-21
Abstract
No abstract record available.
Inventors
- 👤 Brooke D Aspergren
- 👤 Richard V Heinzelman
- 👤 Robert B Moffett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:24
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/14; C07D295/145; C07D295/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A NEW CLASS OF COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
8 words
A NEW CLASS OF COMPOUNDS HAVING THE FORMULA:
References Cited (Backward Citations)
US2405555A
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US2585550A
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US2446803A
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US2446804A
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US2555354A
Cited
US2592191A
Cited
US2649456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |