Patent US2344814A successfully refreshed from Google Patents.
US2344814A
Expired / Lapsed
US
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Process for manufacture of aryloxy-alkylamino butanones
Assignee: Novartis AG
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Filing: 1941-10-02
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Granted: 1944-03-21
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Expires: 1961-10-02
Abstract
No abstract record available.
Inventors
- 👤 Grun Adolf
- 👤 Stoll Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:00
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D295/10; C07D295/104; C07D295/108
Claims Analysis
Total Claims: 0
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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) | 1947-03-21 | 1947-09-20 | 1948-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-21 | 1951-09-20 | 1952-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-21 | 1955-09-20 | 1956-03-21 | $7700.00 | Window Closed / Lapsed |