US3449287A
Expired / Lapsed
US
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Polyamide plasticized with urea for use in fusible compositions
Assignee: Bonded Fibre Fabric Ltd
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Filing: 1966-04-01
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Granted: 1969-06-10
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Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Andrew Ewan Spowart Fairfull
- 👤 Michael Owen Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:52
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/04; D06M17/08; C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C08K5/36; C08K5/39; C08K5/405; Y; Y10; Y10T; Y10T442/00; Y10T442/20; 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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |