Patent US3211388A successfully refreshed from Google Patents.
Patent US3385688A successfully refreshed from Google Patents.
US3385688A
Expired / Lapsed
US
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Phosphonothioates as herbicides
Assignee: Chemagro Corp
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Filing: 1964-09-15
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Granted: 1968-05-28
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Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Erik A Regel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:24
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/657181; C07F9/28; C07F9/30; C07F9/32; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4071; C07F9/4075; C07F9/4078; C07F9/4084; C07F9/42; C07F9/425
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |