US3926935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticoccidial complexes
Assignee: Merck and Co Inc
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Filing: 1974-09-26
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Granted: 1975-12-16
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Expires: 1994-09-26
Abstract
Abstract Substituted 2- and 4-pyridones, pyrimidin-2- and 6-ones and tetrahydroquinolones when complexed with 4,4''-dinitrocarbanilide provide agents which are active coccidiostats and which produce minimal toxic side effects. Processes for the preparation of these complexes as well as compositions suitable for administration to poultry for the prevention and cure of coccidiosis are also disclosed.
Inventors
- 👤 Edward F Rogers
- 👤 Richard A Dybas
- 👤 John Hannah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/28; C07C275/30; A; A23; A23K; A23K20/00; A23K20/10; A23K20/111; A23K20/116; A23K20/132; A23K20/137
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
13 words
A COMPLEX OF 4,4''-DINITROCARBaNILIDE AND ONE OF THE HETEROCYCLIC COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
13 words
A COMPLEX OF 4,4''-DINITROCARBaNILIDE AND ONE OF THE HETEROCYCLIC COMPOUNDS HAVING THE FORMULA:
Claim 3
Dependent Claim
12 words
The complex of claim 1 in which the R1 groups are methyl.
Claim 4
Dependent Claim
12 words
The complex of claim 2 in which the heterocyclic compound is 3-methoxy-1-methyl-2(1H)-pyridone.
Claim 5
Dependent Claim
12 words
The complex of claim 2 in which the heterocyclic compound is 1,4,6-trimethyl-2(1H)-pyrimidinone.
Claim 6
Dependent Claim
12 words
The complex of claim 2 in which the heterocyclic compound is 1,4-dimethyl-5,6,7,8-tetrahydro-2(1H)-quinolone.
Claim 7
Dependent Claim
12 words
The complex of claim 2 in which the heterocyclic compound is 1,4,6-trimethyl-2(1H)-pyridone.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |