Patent US3429117A successfully refreshed from Google Patents.
US3429117A
Expired / Lapsed
US
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Composite nylon continuous filament yarns
Assignee: Celanese Corp
•
Filing: 1965-09-21
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Granted: 1969-02-25
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 David L Sherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:02
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/48; B; B29; B29C; B29C51/00; B29C51/26; B29C51/44; B29C51/445; B29D; B29D30/00; B29D30/06; B29D30/38; B60; B60C; B60C9/00; B60C9/0042; D10; D10B; D10B2331/00; D10B2331/02; D10B2331/04; Y; Y10; Y10S; Y10S57/00; Y10S57/902; Y10S57/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB610140A
Cited
US2755214A
Cited
GB811501A
Cited
US2992150A
Cited
GB831605A
Cited
US3071919A
Cited
US2939202A
Cited
US3201930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |