US3726947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus ureas
Assignee: Novartis Corp
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Filing: 1970-05-28
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Granted: 1973-04-10
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Expires: 1990-05-28
Abstract
Abstract N-(Alkoxy-phosphinyloxy)- and N-(alkoxy-phosphinothioyloxy)-Nalkyl-N''-substituted ureas of the formula In this formula: R1 represents methyl or ethyl, R2 and R3 each independently represent a lower alkoxy or dialkylamino radical, X represents a lower alkyl, alkoxy, alkylthio or halogenoalkyl radical, halogen or the cyano group, Y represents oxygen or sulfur, and N REPRESENTS A NUMBER FROM 0 TO 3, WHICH ARE USEFUL AS HERBICIDES IN A METHOD FOR CONTROLLING WEEDS AND WILD GRASSES ARE DESCRIBED. Compositions containing such compounds are also described.
Inventors
- 👤 H Moser
- 👤 C Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:57
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2404; C07F9/2433; C07F9/2445; C07F9/08; C07F9/09; C07F9/095; C07F9/097; C07F9/16; C07F9/165; C07F9/1654; C07F9/1657
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A compound as defined in claim 1, which is N-(diethoxyphosphinothioyloxy)-N-methyl-N''-(3,4-dichlorophenyl)-urea.
Claim 2
Dependent Claim
10 words
A compound as defined in claim 1, which is N-(diethoxyphosphinyloxy)-N-methyl-N''-(4-bromophenyl)-urea.
References Cited (Backward Citations)
US3384683A
Cited
US3393253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |