US2780833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of artificial slubbed filaments
Assignee: Akzo Nobel UK PLC
•
Filing: 1952-06-11
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Granted: 1957-02-12
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Expires: 1972-06-11
Abstract
No abstract record available.
Inventors
- 👤 Richard H Braunlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/20; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH176323A
Cited
US2142597A
Cited
US2219504A
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US2386173A
Cited
US2476293A
Cited
US2584226A
Cited
US2571457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |