Patent US2765255A successfully refreshed from Google Patents.
US2765255A
Expired / Lapsed
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Insecticidal emulsion concentrates
Assignee: Shell Development Co
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Filing: 1952-07-18
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Granted: 1956-10-02
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Swarbrick Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:30
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A STABLE, FLOWABLE, WATER-DISPERSIBLE INSECTICIDAL CONCENTRATE COMPOSITION HAVING A CONSISTENCY OF AT LEAST ABOUT 100 DECI-MILLIMETERS AND COMPRISING A SOLID INSECTICIDE FINELY DIVIDED INTO PARTICLES OF LESS THAN 100 MICRONS IN SIZE, SAID PARTICLES BEING SUSPENDED WITHIN AN INTIMATELY ADMIXED LIQUID DISPERSION OF WATER AND AN ESSENTIALLY WATER-INSOLUBLE ORGANIC LIQUID, THE WATER IN SAID CONCENTRATE COMPRISING LESS THAN ABOUT 25% BY WEIGHT OF THE CONCENTRATE, THE ORGANIC LIQUID IN SAID LIQUID DISPERSION BEING THE CONTINUOUS PHASE, SAID INSECTICIDE BEING SUBSTANTIALLY INSOLUBLE IN WATER AND IN SAID ORGANIC LIQUID, SAID CONCENTRATE ALSO CONTAINING AN EMULSIFIER ADAPTED TO STABILIZE THE CONCENTRATE AND TO PROMOTE DISPERSION OF SAID CONCENTRATE IN WATER TO FORM AN EMULSION IN WHICH THE AQUEOUS PHASE CONTAINING SEPARATELY DISPERSED SOLID PARTICLES IS THE CONTINOUS PHASE.
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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |