US2671929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing filaments of uneven denier
Assignee: Akzo Nobel UK PLC
•
Filing: 1949-11-03
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Granted: 1954-03-16
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Expires: 1969-11-03
Abstract
No abstract record available.
Inventors
- 👤 Cecil W Gayler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/20; F; F16; F16H; F16H35/00; F16H35/02; F16H55/00; F16H55/02; F16H55/08; F16H55/084; F16H2035/003; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996796A
Cited
US2143236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |