Patent US2472812A successfully refreshed from Google Patents.
US2472812A
Expired / Lapsed
US
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Esters of alpha-fluoromethyl acrylic acids
Assignee: Eastman Kodak Co
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Filing: 1946-04-27
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Granted: 1949-06-14
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Expires: 1966-04-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:11
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/52; C07C57/54; C07C57/64; C07C57/76; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |