Patent US3749720A successfully refreshed from Google Patents.
US3749720A
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US
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Pyridazinothionophosphoric (phosphonic) acid esters
Assignee: Bayer AG
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Filing: 1971-10-01
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Granted: 1973-07-31
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Expires: 1991-10-01
Abstract
Abstract 3-(R-O-P(=S)(-R1)-O-),6-((CH3)2-N-C(=X)-O-)PYRIDAZINE IN WHICH R IS ALKYL WITH 1-6 CARBON ATOMS, R1 IS ALKYL OR ALKOXY WITH 1-6 CARBON ATOMS OR PHENYL, AND X IS OXYGEN OR SULFUR, WHICH POSSESS INSECTICIDAL, ACARICIDAL, NEMATOCIDAL AND RODENTICIDAL PROPERTIES. PYRIDAZINOTHIONOPHOSPHORIC(PHOSPHONIC) ACID ESTERS OF THE GENERAL FORMULA
Inventors
- 👤 G Unterstenhofer
- 👤 C Fest
- 👤 I Hammann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:26
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/02; A01N57/08; C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/645; C07F9/6509; C07F9/650905
Claims Analysis
Total Claims: 0
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |