Patent US2731384A successfully refreshed from Google Patents.
US2731384A
Expired / Lapsed
US
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2-hydroxy pyridine substituted urea complex
Assignee: Merck and Co Inc
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Filing: 1955-02-28
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Granted: 1956-01-17
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Robert C O'neill
- 👤 Arthur J Basso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:00
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/16; C07C275/00; C07C275/28; C07C275/30; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
A COMPOSITION USEFUL AGAINST COCCIDIOSIS WHICH COMPRISES AN INERT CARRIER AND A COMPOUND REPRESENTED BY THE FORMULA-
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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |