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US2439081A
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Polymers of cyanoacrylic acid derivatives
Assignee: Eastman Kodak Co
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Filing: 1944-05-05
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Granted: 1948-04-06
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Expires: 1964-05-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 Fred C Duennebier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR814093A
Cited
US2160375A
Cited
US2168534A
Cited
US2168535A
Cited
US2224022A
Cited
US2293969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |