US4264777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal diphenyl ether compound
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1975-12-05
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Granted: 1981-04-28
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Expires: 1995-12-05
Abstract
Abstract Nitrodiphenyl ether derivatives of the general formula: <IMAGE> wherein X represents chlorine, fluorine, methyl or trifluoromethyl and n is an integer of 1-3 are valuable as herbicides, the compounds and compositions containing these compounds possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops.
Inventors
- 👤 Takeo Yoshimoto
- 👤 Takayuki Inoue
- 👤 Hideo Michiyama
- 👤 Takeo Harayama
- 👤 Osamu Morikawa
- 👤 Yoshikata Hojo
- 👤 Takao Baba
- 👤 Teruhiko Toyama
- 👤 Masaaki Ura
- 👤 Yoshio Takasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:50
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/17; C07C43/174; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
2-chloro-4-trifluoromethylphenyl-4-nitro-3-(β-fluoroethoxy)phenyl ether.
Claim 2
Dependent Claim
2 words
2-chloro-4-trifluoromethylphenyl-4-nitro-3-(β-fluoroethoxy)phenyl ether.
References Cited (Backward Citations)
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US3376281A
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US3562335A
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US3928416A
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US4093446A
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US4062896A
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |