US2992090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal pellets
Assignee: EIDP Inc
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Filing: 1958-03-27
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Granted: 1961-07-11
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Expires: 1978-03-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Littler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:47
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
DENSE, RAPIDLY DISINTEGRATING HERBICIDAL PELLETS HAVING A HIGH DRY-STRENGTH, MADE BY EXTRUSION AND HAVING A DENSITY OF FROM 1.2 TO 1.7 GRAMS PER CUBIC CENTIMETER, SAID PELLETS COMPRISING FROM ABOUT 10 TO 75 PARTS BY WEIGHT OF HERBICIDALLY ACTIVE S-TRIAZINE 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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |