Patent US3235451A successfully refreshed from Google Patents.
US3235451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica powder insecticide with glycols to reduce dustiness
Assignee: FMC Corp
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Filing: 1962-03-12
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Granted: 1966-02-15
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Odeneal John Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:30
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/24; A01N31/00; A01N31/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A POWDER COMPOSITION FOR KILLING CRAWLING INSECTS CONTAINING AS ESSENTIAL INGREDIENTS A FINELY DIVIDED HIGHLY SORPTIVE SILICA WITH AN AVERAGE PARTICLE SIZE NOT IN EXCESS OF FIVE MICRONS AND FROM ABOUT 35 TO 70%, BASED ON THE TOTAL COMPOSITION, OF A GLYCOL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENE GLYCOLS, POLY(LOWER ALKYLENE GLYCOLS), LOWER ALKYL ETHERS OF LOWER ALKYLENE GLYCOLS, AND LOWER ALKYL ETHERS OF POLY(LOWER ALKYLENE GLYCOLS) TO MATERIALLY REDUCE THE DUSTINESS OF THE SILICA WITHOUT CHANGING THE ESSENTIAL PARTICULATE CHARACTER OF THE COMPOSITION.
Claim 2
Dependent Claim
86 words
A POWDER COMPOSITION FOR KILLING CRAWLING INSECTS CONTAINING AS ESSENTIAL INGREDIENTS A FINELY DIVIDED HIGHLY SORPTIVE SILICA WITH AN AVERAGE PARTICLE SIZE NOT IN EXCESS OF FIVE MICRONS AND FROM ABOUT 35 TO 70%, BASED ON THE TOTAL COMPOSITION, OF A GLYCOL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENE GLYCOLS, POLY(LOWER ALKYLENE GLYCOLS), LOWER ALKYL ETHERS OF LOWER ALKYLENE GLYCOLS, AND LOWER ALKYL ETHERS OF POLY(LOWER ALKYLENE GLYCOLS) TO MATERIALLY REDUCE THE DUSTINESS OF THE SILICA WITHOUT CHANGING THE ESSENTIAL PARTICULATE CHARACTER OF THE COMPOSITION.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |