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US3692820A
Expired / Lapsed
US
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Methyl and ethyl-n-{8 3-(3{40 -methylphenyl-carbamyloxy)-phenyl{9 carbamates
Assignee: Bayer Pharma AG
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Filing: 1969-09-25
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Granted: 1972-09-19
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Expires: 1989-09-25
Abstract
Abstract New phenyl carbamates are provided as herbicides, broadly effective against many types of weeds, particularly of the dicotyledenous type.
Inventors
- 👤 Gerhard Boroschewski
- 👤 Friedrich Arndt
- 👤 Reinhart Rusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:56
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/205
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
1 words
Ethyl-3-(3''-methylphenyl-carbamoyloxy)-phenylcarbamate.
References Cited (Backward Citations)
US3404975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |