Patent US3491037A successfully refreshed from Google Patents.
US3491037A
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Cellulose ester spinning solutions and articles therefrom containing crosslinking agent and latent catalyst
Assignee: Eastman Kodak Co
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Filing: 1969-02-03
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Granted: 1970-01-20
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Expires: 1989-02-03
Abstract
No abstract record available.
Inventors
- 👤 Paul H Keys
- 👤 James R G Pearman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:32
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08B; C08B15/00; C08B15/10; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F2/00; D01F2/24; D01F2/28; D01F2/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2373135A
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US2375838A
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GB611562A
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US2485160A
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US2606880A
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US2598767A
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US2684343A
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US3086949A
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US3006936A
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US2959559A
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US3309327A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |