US3386942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of non-yellowing segmented polyurethane copolymers of polymeric diols, functionally aliphatic diisocyanates and functionally aliphatic diamines
Assignee: Eastman Kodak Co
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Filing: 1964-06-29
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Granted: 1968-06-04
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 Charles J Kibler
- 👤 James G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:40
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/4825; C08G18/4854; C08G18/487; C08G18/4875; C08G18/56; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7614; C08G18/7628; C08G18/7642; C08K; C08K5/00; C08K5/04; C08K5/13; D; D01; D01F; D01F6/00; D01F6/58; D01F6/70; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2929804A
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US3225007A
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US2830038A
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US2915496A
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US2999839A
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GB929435A
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US3157517A
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US3169934A
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FR1366533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |