Patent US2821467A successfully refreshed from Google Patents.
US2821467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(p-halophenyl carbamyl)-cyclohexane carboxylic acid herbicides
Assignee: Monsanto Chemicals Ltd
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Filing: 1955-12-28
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Granted: 1958-01-28
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Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Norman J Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:07
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A NEW COMPOUND HAVING THE STRUCTURE
Claim 2
Dependent Claim
6 words
A NEW COMPOUND HAVING THE STRUCTURE
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) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |