US2491632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing insecticidal compositions containing relatively small quantities of 2,2-bis(p-chlorophenyl) - 1,1,1 - trichlorethane
Assignee: Stauffer Chemical Co
•
Filing: 1944-09-09
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Granted: 1949-12-20
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Expires: 1964-09-09
Abstract
No abstract record available.
Inventors
- 👤 Ferd W Wieder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
A; A01; A01N; A01N59/00; A01N59/02; Y; Y10; Y10S; Y10S264/00; Y10S264/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22700E
Cited
US1585058A
Cited
US2213215A
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US2365047A
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US2349814A
Cited
US2414193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |