Patent US2899437A successfully refreshed from Google Patents.
US2899437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridylethylated salicylamides
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
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Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:20
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS A COMPOSITION OF MATTER, A PYRIDYLETHYLATED SALICYLAMIDE HAVING THE FORMULA:
Claim 2
Dependent Claim
11 words
AS A COMPOSITION OF MATTER, A PYRIDYLETHYLATED SALICYLAMIDE HAVING THE FORMULA:
References Cited (Backward Citations)
US2401522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |