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US2439815A
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Composite thermoplastic fibers
Assignee: Akzo Nobel UK PLC
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Filing: 1945-04-03
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Granted: 1948-04-20
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Expires: 1965-04-03
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Sisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; Y; Y10; Y10S; Y10S57/00; Y10S57/905; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2973
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976201A
Cited
US2238694A
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NL51307C
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FR837555A
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US2310785A
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US2249745A
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US2828074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |