Patent US2768689A successfully refreshed from Google Patents.
US2768689A
Expired / Lapsed
US
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Fiber cutting apparatus comprising a stator blade urged against a rotor blade by damped resilient means
Assignee: Acordis UK Ltd
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Filing: 1952-10-27
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Granted: 1956-10-30
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Expires: 1972-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ewing Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:47
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/263; Y10T83/485; Y10T83/494; Y10T83/869; Y10T83/8789; Y10T83/8796
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1090388A
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US1098512A
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US1302398A
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US1799067A
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US2010078A
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US2064989A
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US2581467A
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US2631668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |