US2433616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polymers of diallyl esters of dicarboxylic acids
Assignee: Shell Development Co
•
Filing: 1944-03-21
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Granted: 1947-12-30
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Expires: 1964-03-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Marple
- 👤 Edward C Shokal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:40
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB304681A
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US2066330A
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US2136349A
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US2160940A
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US2324935A
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US2273891A
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US2328510A
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US2335651A
Cited
US2339058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |