Patent US2844454A successfully refreshed from Google Patents.
US2844454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biological toxicant
Assignee: Monsanto Chemicals Ltd
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Filing: 1954-02-25
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Granted: 1958-07-22
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Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Gail H Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:08
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/02; A01N57/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
27 words
THE METHOD OF DESTROYING UNDESIRABLE PLANTS WHICH COMPRISES APPLYING TO SAID PLANTS A HERBICIDAL QUANTITY OF A HERBICIDAL COMPOSITION COMPRISING A COMPLEX ADDITION PRODUCT HAVING THE FORMULA
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |