Patent US2507631A successfully refreshed from Google Patents.
US2507631A
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Pyridine and piperidine compounds and process of making same
Assignee: CIBA PHARM PROD Inc
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Filing: 1945-03-09
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Granted: 1950-05-16
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Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Hartmann Max
- 👤 Panizzon Leandro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:42
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D213/24; C07D213/54; C07D213/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUND OF THE FOMRULA
Claim 2
Dependent Claim
4 words
COMPOUND OF THE FOMRULA
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) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |