Patent US4197908A successfully refreshed from Google Patents.
Patent US3390214A successfully refreshed from Google Patents.
US3390214A
Expired / Lapsed
US
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Process for the manufacture of composite foamed plastic articles
Assignee: Imperial Chemical Industries Ltd
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Filing: 1964-06-17
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Granted: 1968-06-25
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Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 Woods George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:35
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B29C44/146; B68; B68G; B68G7/00; B29C51/00; B29C51/10; B29K; B29K2075/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |