US2941922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticidal compositions
Assignee: Shell USA Inc
•
Filing: 1957-05-06
•
Granted: 1960-06-21
•
Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 Gerolt Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
AN INSECTICIDAL COMPOSITION COMPRISING AN INTIMATE HOMOGENEOUS MIXTURE OF A CHLORINATED POLYCYCLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDRIN, ISODRIN, DIELDRIN AND ENDRIN, AND AN ASPHALTITE, THE RATIO OF SAID ASPHALTITE TO SAID POLYCYCLIC COMPOUND RANGING BETWEEN 1:2 AND 5:1.
Claim 2
Dependent Claim
41 words
AN INSECTICIDAL COMPOSITION COMPRISING AN INTIMATE HOMOGENEOUS MIXTURE OF A CHLORINATED POLYCYCLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALDRIN, ISODRIN, DIELDRIN AND ENDRIN, AND AN ASPHALTITE, THE RATIO OF SAID ASPHALTITE TO SAID POLYCYCLIC COMPOUND RANGING BETWEEN 1:2 AND 5:1.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |