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US3385811A
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Sulfur-modified unsaturated block copolyesters
Assignee: Imperial Chemical Industries Ltd
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Filing: 1965-12-01
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Granted: 1968-05-28
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Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Carrington Joan Lesley
- 👤 Corbett William Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/5075; C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C08L; C08L67/00; C08L67/02; D06M11/00; D06M11/51; D06M11/54; C08G63/78; C08G63/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2403533A
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US2454546A
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US2489943A
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US2901451A
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US3194678A
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US3274290A
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US3317633A
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US3262914A
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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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |