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US3624150A
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Polyhalo-(sulfonic acid anilides)
Assignee: Bayer AG
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Filing: 1969-02-24
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Granted: 1971-11-30
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Expires: 1989-02-24
Abstract
Abstract Polyhalo-(sulfonic acid anilides), i.e. 2,4- and 3,4-dichlorobenzene-sulfonic acid (2''-chloro or bromo- -3'',5''-di- and 3'',4'', 5''-tri--chloro)-anilides which possess strong herbicidal properties, especially with respect to submersed aquatic plants, and which may be produced by conventional methods.
Inventors
- 👤 Johann Albrecht Renner
- 👤 Ludwig Eue
- 👤 Helmuth Hack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:25
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/15; C07C311/21; A; A01; A01N; A01N41/00; A01N41/02; A01N41/04; A01N41/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
21 words
A polyhalo-(sulfonic acid anilide) of the formula: wherein X is hydrogen, X'' is chloro, X'''' is chloro and Hal is bromo.
Claim 2
Dependent Claim
9 words
The compound 2,4-dichloro-benzene-sulfonic acid (2''-bromo-3'' ,5''-dichloro)-anilide of the formula:
Claim 3
Dependent Claim
11 words
The compound 3,4-dichloro-benzene sulfonic acid (2''-bromo-3'', 5''-dichloro) anilide of the formula:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |