US2485694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation of allyl alchol from hydrolysis products
Assignee: Wyandotte Chemicals Corp
•
Filing: 1945-02-16
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Granted: 1949-10-25
•
Expires: 1965-02-16
Abstract
No abstract record available.
Inventors
- 👤 Paul E Burchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:08
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/81; C07C45/82; C07C29/00; C07C29/74; C07C29/76; C07C29/80; C07C29/82; C07C29/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1744503A
Cited
US1676735A
Cited
US2179059A
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US2322800A
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US2251983A
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US2441540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |