Patent US2661276A successfully refreshed from Google Patents.
US2661276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicides
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-01-25
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Granted: 1953-12-01
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Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Schlesinger
- 👤 David T Mowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:39
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A METHOD OF DESTROYING UNDESIRED PLANTS WHICH COMPRISES APPLYING TO SAID PLANTS A HERBICIDAL COMPOSITION INCLUDING 4-CHLORO-3-NITROQUINOLINE AS THE ACTIVE INGREDIENT.
Claim 2
Independent Claim
21 words
A METHOD OF DESTROYING UNDESIRED PLANTS WHICH COMPRISES APPLYING TO SAID PLANTS A HERBICIDAL COMPOSITION INCLUDING 4-CHLORO-3-NITROQUINOLINE AS THE ACTIVE INGREDIENT.
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) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |