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Patent US3154397A successfully refreshed from Google Patents.
US3154397A
Expired / Lapsed
US
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Herbicidal composition and method
Assignee: Dow Chemical Co
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Filing: 1960-06-30
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Granted: 1964-10-27
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Robert T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:53
CPC Classifications
C; C05; C05C; C05C9/00; A; A01; A01N; A01N25/00; A01N25/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A FREE-FLOWING, SUBSTANTIALLY DUST-FREE HERBIDIDAL PRODUCT CONSISTING OF A SMOOTH, HARD, SPHEROID OF FROM ABOUT 0.1 TO 2.0 MILLIMETERS IN DIAMETER COMPRISING UREA AS CARRIER MEDIUM AND HAVING INTIMATELY INCORPORATED THEREIN A PHYTOCIDAL AMOUNT OF A HALOARYLOXYALIPHATIC ACID AS THE HERBICIDAL SUBSTANCE, SAID HERBICIDAL PRODUCT BEING PREPARED BY MIXING THE HERBICIDAL SUBSTANCE WITH UREA, SUBJECTING THE RESULTING MIXTURE TO A TEMPERATURE SUFFICIENT TO PROVIDE A MOLTEN SOLUTION AND EJECTING SAID MOLTEN SOLUTION FROM A HEATED NOZZLE INTO A COOLING TOWER.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |