Patent US3020144A successfully refreshed from Google Patents.
US3020144A
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US
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Herbicidal composition and method employing nu-cyano and nu-cyanoalkyl substituted ureas
Assignee: EIDP Inc
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Filing: 1955-12-22
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Granted: 1962-02-06
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Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Richard J Gobeil
- 👤 Raymond W Luckenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:46
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809; C07C273/1818; C07C273/1827
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A HERBICIDAL COMPOSITION COMPRISING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ANIONIC, CATIONIC AND NON-IONIC SURFACE-ACTIVE AGENTS AND, IN AMOUNT SUFFICIENT TO EXERT HERBICIDAL ACTION, A COMPOUND REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
US2472347A
Cited
US2655445A
Cited
US2709648A
Cited
US2667411A
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US2705195A
Cited
US2749232A
Cited
US2726150A
Cited
US2704245A
Cited
US2789129A
Cited
US2723192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |