US2655447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method
Assignee: EIDP Inc
•
Filing: 1952-02-14
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Granted: 1953-10-13
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Expires: 1972-02-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:51
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/08; A01N47/00; A01N47/08; A01N47/28; A01N47/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
A HERBICIDAL COMPOSITION COMPRISING A CONDITIONING AGENT AND, IN AMOUNT SUFFICIENT TO EXERT HERBICIDAL ACTION, A 1,3-SUBSTITUTED UREA SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FORMULAS:
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) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |