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US2655445A
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3-(halophenyl)-1-methyl-1-(methyl or ethyl) ureas and herbicidal compositions and methods employing same
Assignee: EIDP Inc
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Filing: 1952-02-14
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Granted: 1953-10-13
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Expires: 1972-02-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:32
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/30; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
10 words
A HERBICIDALLY ACTIVE TRISUBSTITUTED UREA COMPOUND REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
US2280756A
Cited
GB574995A
Cited
US2322761A
Cited
US2341868A
Cited
US2472347A
Cited
US2374485A
Cited
US2412510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |