US3305562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making alpha-pyrrolidino-valerophenones
Assignee: Wander AG
•
Filing: 1961-05-22
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Granted: 1967-02-21
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Heffe Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:54
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/80; C07C49/807; C07C45/00; C07C45/45; C07C45/46; C07C45/61; C07C45/63; C07D; C07D295/00; C07D295/04; C07D295/10; C07D295/104; C07D295/108; C07D303/00; C07D303/02; C07D303/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE PROCESS FOR THE PRODUCTION OF A FREE BASE SELECTED FROM THE GROUP CONSISTING OF A-PYRROLIDINO-VALEROPHENONE AND P-SUBSTITUTED A-PYROROLIDINO-VALEROPHENONES HAVING THE FORMUAL I:
Claim 2
Dependent Claim
23 words
THE PROCESS FOR THE PRODUCTION OF A FREE BASE SELECTED FROM THE GROUP CONSISTING OF A-PYRROLIDINO-VALEROPHENONE AND P-SUBSTITUTED A-PYROROLIDINO-VALEROPHENONES HAVING THE FORMUAL I:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |