US2491102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated sheet materials and plastic compositions therefor
Assignee: Imperial Chemical Industries Ltd
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Filing: 1945-05-16
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Granted: 1949-12-13
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Expires: 1965-05-16
Abstract
No abstract record available.
Inventors
- 👤 Frowde Stanley Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/046; D06N; D06N3/00; D06N3/04; D06N3/042; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/80; D21H19/82; D21H19/824; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; C08J2433/00
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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |