Patent US1132470A successfully refreshed from Google Patents.
Patent US3819661A successfully refreshed from Google Patents.
US3819661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-chloro-n-furfuryl or tetrahydrofur-furylacetanilides and ring substituted derivatives
Assignee: Bayer CropScience Inc USA
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Filing: 1971-11-01
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Granted: 1974-06-25
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Expires: 1991-11-01
Abstract
Abstract THERE ARE PROVIDED COMPOUNDS HAVING THE FORMULAE: (FUR-2-YL-CH2-N(-CO-CH2-X)-),R'',R",R"''-BENZENE AND THE CORRESPONDING N-TETRAHYDROFURFURYL COMPOUNDS, WHEREIN X IS HALOGEN (CL OR BR) AND R'', R" AND R''" ARE C1-C6 ALKYL, C1-C6 ALKOXY, C1-C6 ALKYLTHIO, C1-C6 ALKYLSULFINYL, C1-C6 ALKYLSULFONYL, HALO CYANO, C1-C3 ALKOXYCARBONYL, ACETOXY, ACETYL, AND TRIFLUOROMETHYL. THESE COMPOUNDS ARE USEFUL AS PRE-EMERGENCE HERBICIDES.
Inventors
- 👤 L Maravetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:11
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52
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) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |