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Patent US2744818A successfully refreshed from Google Patents.
US2744818A
Expired / Lapsed
US
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Low volatile herbicidal compositions
Assignee: Pittsburgh Coke and Chemical Co
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Filing: 1954-12-01
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Granted: 1956-05-08
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Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 William R Davie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:53
CPC Classifications
A; A01; A01N; A01N39/00; A01N39/02; C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/708; C07C69/712
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
AS A NEW HERBICIDAL MIXTURE OF ESTERS, THE MIXTURE OF ESTERS HAVING THE FORMULA
Claim 2
Dependent Claim
14 words
AS A NEW HERBICIDAL MIXTURE OF ESTERS, THE MIXTURE OF ESTERS HAVING THE FORMULA
References Cited (Backward Citations)
US2396513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |