US4151167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-Acylamino-1,3,4-thiadiazole-2-sulfonamides
Assignee: Chevron USA Inc
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Filing: 1977-10-05
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Granted: 1979-04-24
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Expires: 1997-10-05
Abstract
Abstract Compounds which are useful as selective herbicides have the general structural formula ##STR1## in which R 1 and R 2 are selected from hydrogen, and lower alkyl, alkenyl, alkylene and alkoxy structures and together possess a total of 1 to 6 carbon atoms when R 3 is ethyl, propyl, isopropyl, cyclopropyl, methoxy or tert-butyl.
Inventors
- 👤 Joel L. Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135; A; A01; A01N; A01N43/00; A01N43/72; A01N43/82; A01N47/00; A01N47/08; A01N47/10; A01N47/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
21 words
The compound having the structural formula ##STR6## in which R 1 and R 2 are methyl and R 3 is cyclopropyl.
Claim 2
Dependent Claim
21 words
The compound having the structural formula ##STR6## in which R 1 and R 2 are methyl and R 3 is cyclopropyl.
Claim 3
Dependent Claim
22 words
The compound having the structural formula ##STR7## in which R 1 is methyl, R 2 is hydrogen and R 3 is cyclopropyl.
Claim 4
Dependent Claim
22 words
The compound having the structural formula ##STR7## in which R 1 is methyl, R 2 is hydrogen and R 3 is cyclopropyl.
Claim 5
Dependent Claim
21 words
The compound having the structural formula ##STR8## in which R 1 and R 2 are ethyl and R 3 is cyclopropyl.
Claim 6
Dependent Claim
21 words
The compound having the structural formula ##STR8## in which R 1 and R 2 are ethyl and R 3 is cyclopropyl.
Claim 7
Dependent Claim
22 words
The compound having the structural formula ##STR9## in which R 1 is ethyl, R 2 is hydrogen and R 3 is cyclopropyl.
Claim 8
Dependent Claim
22 words
The compound having the structural formula ##STR9## in which R 1 is ethyl, R 2 is hydrogen and R 3 is cyclopropyl.
Claim 9
Dependent Claim
22 words
The compound having the structural formula ##STR10## in which R 1 is methyl, R 2 is butyl and R 3 is cyclopropyl.
Claim 10
Dependent Claim
22 words
The compound having the structural formula ##STR10## in which R 1 is methyl, R 2 is butyl and R 3 is cyclopropyl.
Claim 11
Dependent Claim
22 words
The compound having the structural formula ##STR11## in which R 1 is methyl, R 2 is ethyl and R 3 is cyclopropyl.
Claim 12
Dependent Claim
22 words
The compound having the structural formula ##STR11## in which R 1 is methyl, R 2 is ethyl and R 3 is cyclopropyl.
Claim 13
Dependent Claim
23 words
The compound having the structural formula ##STR12## in which R 1 is methyl, R 2 is sec. butyl and R 3 is cyclopropyl.
Claim 14
Dependent Claim
23 words
The compound having the structural formula ##STR12## in which R 1 is methyl, R 2 is sec. butyl and R 3 is cyclopropyl.
Claim 15
Dependent Claim
22 words
The compound having the structural formula ##STR13## in which R 1 is tert-butyl, R 2 is hydrogen and R 3 is cyclopropyl.
Claim 16
Dependent Claim
22 words
The compound having the structural formula ##STR13## in which R 1 is tert-butyl, R 2 is hydrogen and R 3 is cyclopropyl.
References Cited (Backward Citations)
CA508982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |