US3962458A
Expired / Lapsed
US
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Systemic control of ectoparasites with pyrethroids
Assignee: Wyeth Holdings LLC
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Filing: 1975-02-13
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Granted: 1976-06-08
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Expires: 1995-02-13
Abstract
Abstract This invention is the use of m-phenoxybenzyl esters of spirocarboxylic acids as systemic insecticidal and acaricidal agents for treatment of homothermic animals.
Inventors
- 👤 Michael Stanley Schrider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:31
CPC Classifications
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Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
A method for the systemic control of ectoparasites which attack warm-blooded animals, comprising administering to said warm-blooded animals a systemically effective amount against the ectoparasites of a compound having a formula ##SPC17## wherein R 1 is hydrogen, cyano or ethynyl, and represents a single or double bond, and the optical and geometric isomers thereof.
Claim 2
Independent Claim
54 words
A method for the systemic control of ectoparasites which attack warm-blooded animals, comprising administering to said warm-blooded animals a systemically effective amount against the ectoparasites of a compound having a formula ##SPC17## wherein R 1 is hydrogen, cyano or ethynyl, and represents a single or double bond, and the optical and geometric isomers thereof.
Claim 3
Dependent Claim
33 words
A method according to claim 1, wherein the compound has the structure: ##SPC18## wherein R 1 is hydrogen, cyano or ethynyl, is a single or double bond, and the steroisomers of said compounds.
Claim 4
Dependent Claim
34 words
A method according to claim 1, wherein the compound has the structure: ##SPC19## wherein R 1 is hydrogen, cyano or ethynyl, and is a single or double bond, and the stereoisomers of said compounds.
Claim 5
Dependent Claim
38 words
A method according to claim 1, wherein the compound is administered, orally or parenterally, to the animal host at a dose level of from 25 mg/kg of animal body weight to about 1000 mg/kg of animal body weight.
Claim 6
Dependent Claim
14 words
A method according to claim 2, wherein the compound is 2,2-dimethyl-4,5-benzospiro[2,4]hepta-4,6-diene-1-carboxylic acid, m-phenoxybenzyl ester.
Claim 7
Dependent Claim
14 words
A method according to claim 2, wherein the compound is 2,2-dimethyl-4,5-benzospiro[2,4]hepta-4,6-diene-1-carboxylic acid, α-cyano-m-phenoxybenzyl ester.
Claim 8
Dependent Claim
15 words
A method according to claim 2, wherein the compound is 2,2-dimethyl-4,5-benzospiro[2,4]hepta-4-ene 1-carboxylic acid, m-phenoxybenzyl ester.
Claim 9
Dependent Claim
15 words
A method according to claim 2, wherein the compound is 2,2-dimethyl-4,5-benzospiro[2,4]hepta-4-ene 1-carboxylic acid, α-cyano-m-phenoxybenzyl ester.
Claim 10
Dependent Claim
14 words
A method according to claim 3 wherein the compound is 2,2-dimethylspiro[2,4]hepta-4,6-diene-1-carboxylic acid, m-phenoxybenzyl ester.
Claim 11
Dependent Claim
14 words
A method according to claim 3 wherein the compound is 2,2-dimethylspiro[2,4]hepta-4,6-diene-1-carboxylic acid, α-cyano-m-phenoxybenzyl ester.
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |