US2914439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentachlorocyclopentene-3-one-2-yl phosphonates and insecticidal use thereof
Assignee: Velsicol Chemical LLC
•
Filing: 1957-03-14
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Granted: 1959-11-24
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4018
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
22 words
THE METHOD OF CONTROLLING INSECT AND MITE PESTS WHICH COMPRISES THE APPLICATION OF A LETHAL QUANTITY OF THE COMPOSITION OF CLAIM 1.
References Cited (Backward Citations)
US2609376A
Cited
US2806047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |