US3983168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halophenoxy benzoic acid salts
Assignee: Bayer CropScience SA
•
Filing: 1975-09-04
•
Granted: 1976-09-28
•
Expires: 1995-09-04
Abstract
Abstract Metal salts and amine salts of 2-nitro-5-(halophaenoxy) benzoic acids comprise a class of compounds that are highly effective pre- and post-emergence herbicides.
Inventors
- 👤 Robert J. Theissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:03
CPC Classifications
C; C07; C07C; C07C63/00; C07C63/33
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
36 words
A compound having the formula: ##SPC2## wherein X is halogen, n is 1 to 5, and M is alkali metal (Li, Na, K), alkylammonium (C 1 -C 4 ), or alkanolammonium (C 1 -C 3 ).
Claim 2
Dependent Claim
36 words
A compound having the formula: ##SPC2## wherein X is halogen, n is 1 to 5, and M is alkali metal (Li, Na, K), alkylammonium (C 1 -C 4 ), or alkanolammonium (C 1 -C 3 ).
Claim 3
Dependent Claim
9 words
A compound of claim 1, wherein M is sodium.
Claim 4
Dependent Claim
9 words
A compound of claim 1, wherein M is potassium.
Claim 5
Dependent Claim
9 words
A compound of claim 1, wherein M is ethylammonium.
Claim 6
Dependent Claim
9 words
A compound of claim 1, wherein M is ethanolammonium.
Claim 7
Dependent Claim
11 words
A compound of claim 1, wherein M is C 4 alkylammonium.
References Cited (Backward Citations)
US3257191A
Cited
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US3374083A
Cited
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Cited
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Cited
US3652645B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |