US3754887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ureidopyrazoles defoliants
Assignee: EIDP Inc
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Filing: 1972-02-25
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Granted: 1973-08-28
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Expires: 1992-02-25
Abstract
Abstract Certain ureidopyrazoles, such as 5-(3-phenylureido)-1,3dimethylpyrazole, 5-(3-(2-fluorophenyl)ureido)-4-chloro-1,3dimethylpyrazole, and 5-(3-(3-fluorophenyl)ureido)-1,3dimethylpyrazole, are effective as plant growth modifiers. The ureidopyrazoles are particularly useful as defoliants on cotton, soybean, and dry bean plants.
Inventors
- 👤 R Brantley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:38
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/38; C07D231/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
11 words
The method of claim 1 in which said compound is 5-(3-phenylureido)-1,3-dimethylpyrazole.
Claim 2
Dependent Claim
11 words
The method of claim 1 in which said compound is 5-(3-(2-fluorophenyl)ureido)-4-chloro-1,3-dimethylpyrazole.
Claim 3
Dependent Claim
11 words
The method of claim 1 in which said compound is 5-(3-(3-fluorophenyl)ureido)-1,3-dimethylpyrazole.
Claim 4
Dependent Claim
21 words
A composition for defoliating plants comprising an inert carrier and an effective amount of at least one compound having the formula
Claim 5
Dependent Claim
11 words
The composition of claim 5 in which said compound is 5-(3-phenylureido)-1,3-dimethylpyrazole.
Claim 6
Dependent Claim
11 words
The composition of claim 5 in which said compound is 5-(3-(2-fluorophenyl)ureido)-4-chloro-1,3-dimethylpyrazole.
Claim 7
Dependent Claim
11 words
The composition of claim 5 in which said compound is 5-(3-(3-fluorophenyl)ureido)-1,3-dimethylpyrazole.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |