US2562855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of 2, 4, 5-trichlorophenoxyacetic acid
Assignee: Dow Chemical Co
•
Filing: 1950-05-22
•
Granted: 1951-07-31
•
Expires: 1970-05-22
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Britton
- 👤 Louis E Begin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
THE ESTERS OF 2,4,5-TRICHLOROPHENOXYACETIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
8 words
THE ESTERS OF 2,4,5-TRICHLOROPHENOXYACETIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2396513A
Cited
US2523189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |