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Patent US2466404A successfully refreshed from Google Patents.
US2466404A
Expired / Lapsed
US
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Polyvinyl carbamates
Assignee: Eastman Kodak Co
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Filing: 1944-03-08
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Granted: 1949-04-05
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Expires: 1964-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William F Fowler
- 👤 William O Kenyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08F; C08F8/00; C08F8/30; C08G18/28; C08G18/40; C08G18/62; C08G18/6212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1991107A
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US2179051A
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US2249535A
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US2304252A
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US2284896A
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US2384123A
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US2373135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |