US2481669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing enol acetates
Assignee: —
•
Filing: —
•
Granted: 1949-09-13
•
Expires: 1966-09-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:31
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926642A
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US1942110A
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US2198595A
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US2310283A
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US2265165A
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US2383137A
Cited
US2382464A
Cited
US2383965A
Cited
US2398563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |