US3473956A
Expired / Lapsed
US
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Shaped polyamide coated with the same polyamide modified by polyalkylene oxides
Assignee: Imperial Chemical Industries Ltd
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Filing: 1965-05-07
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Granted: 1969-10-21
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Expires: 1985-05-07
Abstract
No abstract record available.
Inventors
- 👤 James Eric Mcintyre
- 👤 Michael Mundie Robertson
- 👤 Geoffrey Alan Horsfall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/59; Y; Y10; Y10S; Y10S525/00; Y10S525/926; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/8305; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2279; Y10T442/2295; Y10T442/2861; Y10T442/2893
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |