US3927003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-Hydrazino-2,3,5-trihalo-4-alkylthio pyridines
Assignee: Dow Chemical Co
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Filing: 1974-12-27
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Granted: 1975-12-16
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Expires: 1994-12-27
Abstract
Abstract Novel compounds having the formula WHEREIN R is an alkyl group of 1 to 5 carbons, X is Br or Cl and Y is Cl or is Br except when X is Cl, are prepared by the reaction of a hydrazine source material with a corresponding compound of the formula The product compounds are fungicidal in their own right and are readily oxidized to highly active trihalo-4-alkylsulfonyl pyridine fungicides.
Inventors
- 👤 Sven H Ruetman
- 👤 Richard N Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:06
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/76; C07D213/77; C07D213/62; C07D213/70; C07D213/71
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
5 words
A 6-HYDRAZINO-2,3,5-TRIHALO-4-(ALKYLTHIO)PYRIDINE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A 6-HYDRAZINO-2,3,5-TRIHALO-4-(ALKYLTHIO)PYRIDINE OF THE FORMULA
Claim 3
Dependent Claim
14 words
A compound according to claim 1 in which X and Y are both Cl.
Claim 4
Dependent Claim
11 words
A compound according to claim 1 in which R is n-propyl.
Claim 5
Dependent Claim
1 words
6-Hydrazino-2,3,5-trichloro-4-(n-propylthio)pyridine.
Claim 6
Dependent Claim
1 words
6-Hydrazino-2,3,5-trichloro-4-(n-propylthio)pyridine.
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 |