US3914121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectively herbicidal 2-substituted -4H-3,1-benzoxazin-4-ones
Assignee: Gulf Research and Development Co
•
Filing: 1969-12-18
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Granted: 1975-10-21
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Expires: 1989-12-18
Abstract
Abstract Unwanted vegetation is combated in the presence of grain crops and soybeans by post-emergent application of one or more of the following compounds: 2-(M-CHLOROPHENYL)-4H-3,1-benzoxazin-4-one, 2-(M-TRIFLUOROMETHYLPHENYL)-4H-3,1-benzoxazin-4-one, 2-(2-THIENYL)-4H-3,1-benzoxazin-4-one, 2-(O-TRIFLUOROMETHYLPHENYL)-4H-3,1-benzoxazin-4-one, 2-(P-TRIFLUOROMETHYLPHENYL)-4H-3,1-benzoxazin-4-one, 2-(4-METHYL-1,2,3-THIADIAZOLE-5-YL)-BENZOXAZIN-4-ONE 2-(M-BROMOPHENYL)-4H-3,1-benzoxazin-4-one.
Inventors
- 👤 Jr William C Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:32
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/12; C07D265/14; C07D265/20; C07D265/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
COMBATING WEEDS IN THE PRESENCE OF CROPS BY APPLYING POST-EMERGENTLY TO THE LOCUS OF THE WEEDS A HERBICIDALLY EFFECTIVE AMOUNT OF 2-(2-THIENYL)-4H-3,1-BENZOXAZIN-4-ONE,
Claim 2
Dependent Claim
22 words
COMBATING WEEDS IN THE PRESENCE OF CROPS BY APPLYING POST-EMERGENTLY TO THE LOCUS OF THE WEEDS A HERBICIDALLY EFFECTIVE AMOUNT OF 2-(2-THIENYL)-4H-3,1-BENZOXAZIN-4-ONE,
Claim 3
Dependent Claim
22 words
COMBATING WEEDS IN THE PRESENCE OF CROPS BY APPLYING POST-EMERGENTLY TO THE LOCUS OF THE WEEDS A HERBICALLY EFFECTIVE AMOUNT OF 2-(4-METHYL-1,2,3,-THIADIAZOL-5-YL)-4H-3,1-BENZOXAZIN-4-ONE.
Claim 4
Dependent Claim
22 words
COMBATING WEEDS IN THE PRESENCE OF CROPS BY APPLYING POST-EMERGENTLY TO THE LOCUS OF THE WEEDS A HERBICALLY EFFECTIVE AMOUNT OF 2-(4-METHYL-1,2,3,-THIADIAZOL-5-YL)-4H-3,1-BENZOXAZIN-4-ONE.
References Cited (Backward Citations)
US3551477A
Cited
US3560517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |