Patent US3432472A successfully refreshed from Google Patents.
US3432472A
Expired / Lapsed
US
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Dyeable polymers
Assignee: Eastman Kodak Co
•
Filing: 1963-10-30
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Granted: 1969-03-11
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/927; Y10S8/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2899262A
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US2773856A
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GB816841A
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US2877204A
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US3043811A
Cited
US2931696A
Cited
US3148934A
Cited
US3148017A
Cited
US3160618A
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US3327021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |