Patent US5612975A successfully refreshed from Google Patents.
Patent US3565901A successfully refreshed from Google Patents.
US3565901A
Expired / Lapsed
US
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Certain salts of 1,3,4-thiadiazol-2-ylureas
Assignee: Air Products and Chemicals Inc
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Filing: 1969-01-29
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Granted: 1971-02-23
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Expires: 1989-01-29
Abstract
Abstract VARIOUS NOVEL METAL, AMINE AND AMMONIUM DERIVATIVES OF CERTAIN THIADIAZOL-2-YLUREAS ARE DISCLOSED HAVING HIGHLY DESIRABLE UTILITY AS AGRICULTURAL CHEMICALS, AND PARTICULARLY AS PHYTOTOXICANTS.
Inventors
- 👤 Tony Cebalo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:39
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |