Patent US3888932A successfully refreshed from Google Patents.
US3888932A
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Herbicidal 4-trifluoromethyl-4-nitrodiphenyl ethers
Assignee: Rohm and Haas Co
•
Filing: 1972-03-14
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Granted: 1975-06-10
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Expires: 1992-03-14
Abstract
Abstract Compounds of the formula WHEREIN X is a hydrogen atom, a halogen atom, a trihalomethyl group, an alkyl group, or a cyano group, and Y is a hydrogen atom, a halogen atom, or a trihalomethyl group, AND COMPOSITIONS CONTAINING THESE COMPOUNDS EXHIBIT HERBICIDAL ACITIVITY.
Inventors
- 👤 Horst O Bayer
- 👤 Colin Swithenbank
- 👤 Roy Y Yih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:22
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C07C; C07C17/00; C07C17/093; C07C205/00; C07C205/07; C07C205/11; C07C205/12; C07C205/27; C07C205/35; C07C205/36; C07C205/38; C07C205/39; C07C205/42; C07C205/43; C07C205/49; C07C205/57; C07C205/59; C07C275/00; C07C275/28; C07C275/32; C07C275/34; C07C275/36; C07C317/00; C07C323/00; C07C37/00; C07C37/62
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
12 words
A compound according to claim 1 wherein Y is a hydrogen atom.
Claim 4
Dependent Claim
12 words
A compound according to claim 2 wherein X is a halogen atom.
Claim 5
Dependent Claim
12 words
A compound according to claim 3 wherein X is a chlorine atom.
Claim 6
Dependent Claim
18 words
A compound according to claim 1 wherein X is a halogen atom and Y is a halogen atom.
References Cited (Backward Citations)
US3420892A
Cited
US3454392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |