Patent US4404223A successfully refreshed from Google Patents.
US4404223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pesticidal formulations
Assignee: SmithKline Beecham Corp
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Filing: 1981-04-06
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Granted: 1983-09-13
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Expires: 2001-04-06
Abstract
Abstract Pyrethroid esters of the formula (I) <IMAGE> (I) potentiate the activity of each other against arthropod pests. Values of R2 and R3 include halogen and R includes phenoxybenzyl and alpha -cyanophenoxybenzyl. Compositions comprise of two or more esters of (I) and formulations comprise such compositions in association with a carrier. The esters (I) are used to combat arthropods.
Inventors
- 👤 Michael D. Matthewson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:50
CPC Classifications
A; A01; A01N; A01N53/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
A pesticidal composition comprising the esters permethrin and decamethrin, each ester present in an amount to potentiate the other in a ratio of between 1:1 to 50:1 by weight respectively.
Claim 2
Dependent Claim
30 words
A pesticidal composition comprising the esters permethrin and decamethrin, each ester present in an amount to potentiate the other in a ratio of between 1:1 to 50:1 by weight respectively.
Claim 3
Dependent Claim
24 words
The method of killing ticks or flies which comprises contacting ticks or flies with a pesticidally effective amount of the composition of claim 1.
Claim 4
Dependent Claim
19 words
A pesticidal composition comprising permethrin and decamethrin which are present in the ratio of 1 part each by weight.
Claim 5
Dependent Claim
19 words
A pesticidal composition comprising permethrin and decamethrin which are present in the ratio of 1 part each by weight.
Claim 6
Dependent Claim
24 words
The method of killing ticks or flies which comprises contacting ticks or flies with a pesticidally effective amount of the composition of claim 3.
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |