US2764478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed control composition and method
Assignee: EIDP Inc
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Filing: 1954-12-28
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Granted: 1956-09-25
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Expires: 1974-12-28
Abstract
No abstract record available.
Inventors
- 👤 Norman E Searle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:31
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
A HERBICIDAL COMPOSITION COMPRISING A PEST CONTROL ADJUVANT AND, IN A CONCENTRATION SUFFICIENT TO EXERT A HERBICIDAL ACTION, A TRI-SUBSTITUTED UREA REPRESENTED BY 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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |