US3028305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of free flowing granular heptachlor compositions
Assignee: Velsicol Chemical LLC
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Filing: 1959-01-14
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Granted: 1962-04-03
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Expires: 1979-01-14
Abstract
No abstract record available.
Inventors
- 👤 Walter D Alvin
- 👤 Smith Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:20
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A NON-CAKING, FREE-FLOWING GRANULAR INSECTICIDAL COMPOSITION OF MATTER COMPOSED ESSENTIALLY OF HEPTACHLOR AND A FREE-FLOWING, INERT CARRIER SYSTEM CONSISTING OF FROM ABOUT 60 TO ABOUT 95 PARTS BY WEIGHT ATTAPULIGITE CLAY HAVING A PARTICLES SIZE SUBSTANTIALLY OF FROM ABOUT 15 TO ABOUT 60 MESH FROM ABOUT 2 TO ABOUT 20 PARTS BY WEIGHT DIATOMACEOUS EARTH HAVING A MAXIMUM MESH SIZE OF 325 AND FROM ABOUT 3 TO ABOUT 30 PARTS BY WEIGHT MONTMORILLONITE CLAY HAVING A MAXIMUM PARTICLES SIZE SUBSTANTIALLY OF FROM ABOUT 20 TO ABOUT 40 MESH.
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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |