Patent US2788256A successfully refreshed from Google Patents.
US2788256A
Expired / Lapsed
US
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Method of spinning filamentary strands
Assignee: Akzo Nobel UK PLC
•
Filing: 1952-06-02
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Granted: 1957-04-09
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Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 George M Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US231357A
Cited
US927955A
Cited
US951425A
Cited
US1578242A
Cited
US2091285A
Cited
US2254251A
Cited
US2181934A
Cited
US2346696A
Cited
US2348415A
Cited
US2416535A
Cited
US2385097A
Cited
US2536092A
Cited
US2447131A
Cited
FR966893A
Cited
US2510135A
Cited
US2558731A
Cited
US2608850A
Cited
US2611928A
Cited
US2625811A
Cited
US2658254A
Cited
US2661522A
Cited
US2536094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |