Patent US3784555A successfully refreshed from Google Patents.
US3784555A
Expired / Lapsed
US
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Certain oxadiazolyl and thiadiazolyl amidines
Assignee: Air Products and Chemicals Inc
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Filing: 1970-11-05
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Granted: 1974-01-08
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Expires: 1990-11-05
Abstract
Abstract THIS INVENTION RELATES TO NOVEL AMIDINES OF THE GENERAL FORMULA: (-Y-C(-R)=N-N=)>C-N=C(-R3)-N(-R1)-R2 WHEREIN R, R1, R2, R3 AND Y ARE AS HEREINAFTER DEFINED. METHODS FOR USING THESE COMPOUNDS AS AGRICULTURAL CHEMICALS, AND FORMULATIONS FOR PRE- AND POST-EMERGENT HERBICIDAL APPLICATIONS ARE ALSO DISCLOSED.
Inventors
- 👤 T Cebalo
- 👤 R Buntrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:25
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/10; C07D271/113; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |