Patent DE2525377A1 successfully refreshed from Google Patents.
US2439051A
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Flexible sheet material comprising a surface coating containing polyvinyl chlorides
Assignee: Imperial Chemical Industries Ltd
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Filing: 1942-10-28
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Granted: 1948-04-06
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Expires: 1962-10-28
Abstract
No abstract record available.
Inventors
- 👤 Mcgill John Heron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2213; Y10T442/2369
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) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |