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US3944607A
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Herbicidal N-(N'-alkynylcarbamylmethyl)-2,6-dialkyl-α-haloacetanilides
Assignee: Chevron USA Inc
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Filing: 1974-10-17
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Granted: 1976-03-16
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Expires: 1994-10-17
Abstract
Abstract N-(N'alkynylcarbamylmethyl)-2,6-dialkyl-α-haloacetanilides have herbicidal activity, particularly in pre-emergent applications against grassy weeds.
Inventors
- 👤 David Cheong King Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:53
CPC Classifications
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Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A compound of the formula ##SPC6## wherein R 1 and R 2 individually are alkyl of 1 to 6 carbon atoms; R 3 is hydrogen, alkyl of 1 to 6 carbon atoms, haloalkyl of 1 to 2 carbon atoms and 1 to 4 chlorine or bromine atoms, or alkynyl of 3 to 6 carbon atoms; R 4 is alkynyl of 3 to 6 carbon atoms; and X is fluorine, chlorine, bromine or iodine.
Claim 2
Dependent Claim
73 words
A compound of the formula ##SPC6## wherein R 1 and R 2 individually are alkyl of 1 to 6 carbon atoms; R 3 is hydrogen, alkyl of 1 to 6 carbon atoms, haloalkyl of 1 to 2 carbon atoms and 1 to 4 chlorine or bromine atoms, or alkynyl of 3 to 6 carbon atoms; R 4 is alkynyl of 3 to 6 carbon atoms; and X is fluorine, chlorine, bromine or iodine.
Claim 3
Dependent Claim
24 words
The compound of claim 1 wherein R 3 is hydrogen and R 1 and R 2 are alkyl of 1 to 3 carbon atoms.
Claim 4
Dependent Claim
11 words
The compound of claim 2 wherein X is chlorine or bromine.
Claim 5
Dependent Claim
10 words
The compound of claim 3 wherein R 4 is 2-alkynyl.
Claim 6
Dependent Claim
10 words
The compound of claim 4 wherein R 4 is propargyl.
Claim 7
Dependent Claim
23 words
The compound of claim 1 wherein R 1 , R 2 and R 3 individually are alkyl of 1 to 3 carbon atoms.
Claim 8
Dependent Claim
11 words
The compound of claim 6 wherein X is chlorine or bromine.
Claim 9
Dependent Claim
10 words
The compound of claim 2 wherein R 4 is 2-alkynyl.
Claim 10
Dependent Claim
24 words
The compound of claim 8 wherein R 1 , R 2 and R 3 are methyl, R 4 is propargyl and X is chlorine.
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |