US2429031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenation of alpha, beta-unsaturated nitriles
Assignee: Wingfoot Corp
•
Filing: 1945-02-23
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Granted: 1947-10-14
•
Expires: 1965-02-23
Abstract
No abstract record available.
Inventors
- 👤 Jack D Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/01; C07C255/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2353563A
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US2231360A
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US2231838A
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US2231363A
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GB547067A
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US2298739A
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US2384889A
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US2365808A
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US2390470A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |