US3560613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of pyrethroid compositions
Assignee: United States Department of Agriculture
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Filing: 1967-05-09
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Granted: 1971-02-02
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Expires: 1987-05-09
Abstract
Abstract PYRETHROIDS, USEFUL IS INSECTICIDES, ARE STABILIZED AGAINST DETERIORATION BY AIR AND SUNLIGHT BY INCORPORATING IN A LIQUID PETROLATUM SOLUTION THEREOF (1) FROM 0% TO 5% OF A PHOTO-STABLE, ULTRAVIOLET ABSORBENT COMPOUND HAVING A LOG MOLAR EXTINCTION COEFFICIENT OF NOT LESS THAN ABOUT 3.0 IN RANGE OF ABOUT FROM 2,000 TO 3,200 ANGESTROM UNITS AND NOT MORE THAN ABOUT 2.0 IN THE RANGE OF ABOUT FROM 4,000 TO 7,000 ANGSTROM UNITS, SUCH AS ANYL PARADIMETHYLAMINOBENZOATE, AND (2) FROM 0% TO 5% OF AN ANTIOXIDANT, SUCH AS 2,6-DI-TERT BUTYL PARA-CRESOL.
Inventors
- 👤 Raymond P Miskus
- 👤 Theresa Litwin Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:17
CPC Classifications
A; A01; A01N; A01N35/00; A01N35/04; A01N53/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |