US4099956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal semicarbazones
Assignee: Shell USA Inc
•
Filing: 1976-10-15
•
Granted: 1978-07-11
•
Expires: 1996-10-15
Abstract
Abstract 2-Phenylsemicarbazones of the formula <IMAGE> wherein R1 and R2 are alkyl; R3 is H, alkyl, or alkenyl; X is halogen, trifluoromethyl, cycloalkylalkoxy or alkoxy and m is 1 or 2 are useful as herbicides.
Inventors
- 👤 Kurt H. G. Pilgram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:32
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A compound of the formula ##STR4## wherein R is hydrogen, alkyl of 1 to 5 carbon atoms or alkenyl of 2 to 5 carbon atoms and one of X is halogen of atomic number 9 to 35 inclusive, or trifluoromethyl and the other is halogen or alkoxy in which the alkyl portion is straight or branched chain and contains from 1 to 4 carbon atoms.
Claim 2
Dependent Claim
65 words
A compound of the formula ##STR4## wherein R is hydrogen, alkyl of 1 to 5 carbon atoms or alkenyl of 2 to 5 carbon atoms and one of X is halogen of atomic number 9 to 35 inclusive, or trifluoromethyl and the other is halogen or alkoxy in which the alkyl portion is straight or branched chain and contains from 1 to 4 carbon atoms.
Claim 3
Dependent Claim
18 words
A compound according to claim 1 wherein one of X is halogen and the other is branched-chain alkoxy.
Claim 4
Dependent Claim
16 words
A compound according to claim 2 wherein one X is chlorine and the other is isopropoxy.
Claim 5
Dependent Claim
11 words
A compound according to claim 1 wherein each X is halogen.
Claim 6
Dependent Claim
17 words
A compound according to claim 4 wherein one X is chlorine and the other X is fluorine.
Claim 7
Dependent Claim
23 words
A herbicidal composition comprising a herbicidally effective amount of a compound as claimed in claim 1 and an inert, agriculturally acceptable carrier therefor.
Claim 8
Dependent Claim
30 words
A method for controlling undesirable plant growth at a locus to be protected comprising applying to the locus an herbicidally effective amount of a compound as claimed in claim 1.
References Cited (Backward Citations)
US2261735A
Cited
US2655445A
Cited
US3165549A
Cited
US3318680A
Cited
US3439018A
Cited
US3382061A
Cited
JPS4429874Y1
Cited
US3734961A
Cited
US3712914A
Cited
NL7010689A
Cited
US3709936A
Cited
US3829486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |