US3667930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-amino-5-halogenatedaryloxymethyl-1,2,4-oxadiazoles
Assignee: Olin Corp
•
Filing: 1969-12-24
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Granted: 1972-06-06
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Expires: 1989-12-24
Abstract
Abstract A SERIES OF 3-AMIN/-5-HALOGENATEDARYLOXYMETHYL-1,2,4OXADIAZOLES ARE PROVIDED BY THE REACTION OF SELECTED ACYL CARBODIMIDES WITH HYDROXYLAMINE OR SALTS THEREOF TO PROVIDE AN INTERMEDIATE N-ACYLSUBSTITUTED-N''-HYDROXYAUANIDINE WHICH IS CONVERTED TO THE SUBSTITUTED-1,2,4-OXADIAZOLES BY TREATMENT WITH BASE. THE SUBSTIUTED-1,2,4OXADIAZOLES ARE USEFUL AGRICULTURAL CHEMICALS, AND IT HAS BEEN FOUND THAT THEY ARE PARTICULARLY OUTSTANDING SELECTIVE HERBICIDES.
Inventors
- 👤 Herman Breuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:12
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/06; A; A01; A01N; A01N43/00; A01N43/72; A01N43/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |