Patent US2759965A successfully refreshed from Google Patents.
US2759965A
Expired / Lapsed
US
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Esters of alpha-(2, 4-dichlorophenoxy) propionic acid
Assignee: Dow Chemical Co
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Filing: 1953-11-16
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Granted: 1956-08-21
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Louis E Begin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:15
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
9 words
THE ESTERS OF ALPHA-(2,4-DICHLOROPHENOXY) PROPIONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
9 words
THE ESTERS OF ALPHA-(2,4-DICHLOROPHENOXY) PROPIONIC ACID HAVING THE FORMULA
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |