Patent US3323893A successfully refreshed from Google Patents.
US3323893A
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US
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Pyridazone derivatives and herbicidal compositions containing them
Assignee: BASF SE
•
Filing: 1966-04-26
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Granted: 1967-06-06
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Reicheneder Franz
- 👤 Dury Johanna Maria
- 👤 Fischer Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:54
CPC Classifications
C; C07; C07D; C07D291/00; C07D291/02; C07D291/04; F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4314; F02M2700/4316
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
6 words
A PYRIDAZONE DERIVATE HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
A PYRIDAZONE DERIVATE HAVING THE FORMULA:
Claim 3
Dependent Claim
29 words
A PROCESS FOR CONTROLLING UNWANTED PLANT GROWTH IN WHICH THE PLANTS OR THE SOIL ARE TREATED WITH A PHYTOTOXIC AMOUNT OF A PYRIDAZONE DERIVATIVE AS CLAIMED IN CLAIM 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |