US2543397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal compositions containing esters of chlorinated phenoxyacetic acids
Assignee: Henkel Corp
•
Filing: 1949-08-15
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Granted: 1951-02-27
•
Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 William W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
A; A01; A01N; A01N39/00; A01N39/02; A01N39/04; C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/708; C07C69/712
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A HERBICIDAL COMPOSITION CONTAINING AS AN ACTIVE INGREDIENT AT LEAST ONE ESTER OF AN ACID OF THE GROUP CONSISTING OF 2,4-DICHLOROPHENOXYACETIC ACID AND 2.4.5-TRICHLOROPHENOXYACETIC ACID WITH AN ETHER ALCOHOL OF THE FORMULA R.O.CH2.CH20H.. WHEREIN R IS OF THE GROUP CONSISTING OF METHYL, ETHYL, PROPYL, BUTYL, BENZYL AND PHENYL, SAID ACTIVE INGREDIENT BEING PRESENT IN PHYTOCIDAL CONCENTRATION.
Claim 2
Dependent Claim
56 words
A HERBICIDAL COMPOSITION CONTAINING AS AN ACTIVE INGREDIENT AT LEAST ONE ESTER OF AN ACID OF THE GROUP CONSISTING OF 2,4-DICHLOROPHENOXYACETIC ACID AND 2.4.5-TRICHLOROPHENOXYACETIC ACID WITH AN ETHER ALCOHOL OF THE FORMULA R.O.CH2.CH20H.. WHEREIN R IS OF THE GROUP CONSISTING OF METHYL, ETHYL, PROPYL, BUTYL, BENZYL AND PHENYL, SAID ACTIVE INGREDIENT BEING PRESENT IN PHYTOCIDAL CONCENTRATION.
References Cited (Backward Citations)
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US2142126A
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US2166557A
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US2390941A
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US2396513A
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US2537228A
Cited
US2523227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |