US2230631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaloidal nicotinates
Assignee: New York Quinine and Chemical Works Inc
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Filing: 1939-08-05
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Granted: 1941-02-04
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Expires: 1959-08-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Thomas
- 👤 Dowzard Edwin
- 👤 Leo A Flexser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:52
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80; A; A61; A61K; A61K31/00; C07D453/00; C07D453/02; C07D453/04
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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |