Patent DE849112C successfully refreshed from Google Patents.
US2397942A
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Thermoplastic compositions
Assignee: Imperial Chemical Industries Ltd
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Filing: 1943-04-01
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Granted: 1946-04-09
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Expires: 1963-04-01
Abstract
No abstract record available.
Inventors
- 👤 Brookman Ernest Francis
- 👤 Smith Laurence Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:57
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523; C08L1/00; C08L1/08; C08L1/10; C08L1/12; C08L1/16; C08L1/18; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; C08L67/00; C08L67/08; C08L33/10; C08L33/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-04-08 | 1949-10-08 | 1950-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-08 | 1953-10-08 | 1954-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-08 | 1957-10-08 | 1958-04-09 | $7700.00 | Window Closed / Lapsed |