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US3497481A
Expired / Lapsed
US
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Acrylonitrile-vinylidene chloride terpolymers
Assignee: Eastman Kodak Co
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Filing: 1968-04-17
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Granted: 1970-02-24
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Expires: 1988-04-17
Abstract
No abstract record available.
Inventors
- 👤 Alden Edward Blood
- 👤 James Davis Heller
- 👤 Hugh Hagemeyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:18
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08F214/00; C08F214/02; C08F214/04; C08F214/08; C08F220/00; C08F220/02; C08F220/42; C08F220/44
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) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |