US3402221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly (alpha-olefins) containing sulfated or sulfonated condensation polymers
Assignee: Eastman Kodak Co
•
Filing: 1963-10-29
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Granted: 1968-09-17
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Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:23
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; C08L23/14; C08L75/00; C08L77/00; C08L77/12; C08L2203/00; C08L2203/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3107228A
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US3039990A
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US3235623A
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FR1284623A
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US3161608A
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DE1143591B
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US3256363A
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FR1363166A
Cited
US3228484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |