US2419073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling parasites in soil
Assignee: Dow Chemical Co
•
Filing: 1943-01-30
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Granted: 1947-04-15
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Expires: 1963-01-30
Abstract
No abstract record available.
Inventors
- 👤 Oscar H Hammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:48
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/18; Y; Y10; Y10S; Y10S106/00; Y10S106/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1003541A
Cited
DE448371C
Cited
US1696709A
Cited
GB439874A
Cited
DE703190C
Cited
US2217358A
Cited
US2240859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |