Patent US3130121A successfully refreshed from Google Patents.
US3130121A
Expired / Lapsed
US
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Insecticidal powder
Assignee: LEECO CHEMICAN Co DIVISIO
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Filing: 1961-02-10
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Granted: 1964-04-21
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Rapport Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:03
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD OF PREPARING A SHIELDED INSECTICIDAL POWDER COMPRISING FORMING A HOMOGENEOUS DISPERSION OF A DEXTRIN SHILEDING SUBSTANCE AND A PYRETHRIN INSECTICIDE IN A LIQUID CARRIER WHEREIN SAID INSECTICIDE MAKES UP FROM ABOUT 0.02% TO ABOUT 15% BY WEIGHT OF THE TOTAL OF SAID SHIELDING SUBSTANCE AND SAID INSECTICIDE, SUBDIVIDING SAID DISPERSION INTO SMALL DROPLETS, SOLIDIFYING SAID DROPLETS AND RECOVERING THE RESULTANT SHIELDED INSECTICIDAL POWDER.
Claim 2
Independent Claim
65 words
A METHOD OF PREPARING A SHIELDED INSECTICIDAL POWDER COMPRISING FORMING A HOMOGENEOUS DISPERSION OF A DEXTRIN SHILEDING SUBSTANCE AND A PYRETHRIN INSECTICIDE IN A LIQUID CARRIER WHEREIN SAID INSECTICIDE MAKES UP FROM ABOUT 0.02% TO ABOUT 15% BY WEIGHT OF THE TOTAL OF SAID SHIELDING SUBSTANCE AND SAID INSECTICIDE, SUBDIVIDING SAID DISPERSION INTO SMALL DROPLETS, SOLIDIFYING SAID DROPLETS AND RECOVERING THE RESULTANT SHIELDED INSECTICIDAL POWDER.
References Cited (Backward Citations)
GB189410188A
Cited
GB189904654A
Cited
US1786967A
Cited
US2011428A
Cited
GB656058A
Cited
US3091567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |