US3953489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyl 2-nitro-5-(2,4-dichlorophenoxy)-thiobenzoates
Assignee: Astellas Pharma Inc
•
Filing: 1975-01-17
•
Granted: 1976-04-27
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Expires: 1995-01-17
Abstract
Abstract A compound of the formula WHEREIN R is a lower alkyl group, useful as a herbicide, and a method of its preparation. A method of killing weeds using said compound is also disclosed.
Inventors
- 👤 Saburo Tamura
- 👤 Tetsuo Takematsu
- 👤 Hisae Haruta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:59
CPC Classifications
C; C07; C07C; C07C327/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
11 words
A compound of the formula: ##SPC5## wherein R is lower alkyl.
Claim 2
Dependent Claim
11 words
A compound of the formula: ##SPC5## wherein R is lower alkyl.
Claim 3
Dependent Claim
11 words
The compound according to claim 1, in which R is methyl.
Claim 4
Dependent Claim
11 words
The compound according to claim 1, in which R is ethyl.
Claim 5
Dependent Claim
11 words
The compound according to claim 1, in which R is n-propyl.
Claim 6
Dependent Claim
11 words
The compound according to claim 1, in which R is isopropyl.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |