Patent US3552800A successfully refreshed from Google Patents.
US3552800A
Expired / Lapsed
US
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Apparatus for the pneumatic feeding of fiber tufts to spinning mill machinery
Assignee: Truetzschler GmbH and Co KG
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Filing: 1968-09-23
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Granted: 1971-01-05
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Expires: 1988-09-23
Abstract
Abstract APPARATUS FOR FEEDING FIBER TUFTS TO A PICKER PNEUMATICALLY COMPRISING A FEEDING CHUTE, A SECONDARY CHUTE AND A PNEUMATIC DUCT THEREBETWEEN, A PRIMARY ROLLER HAVING PIN MEANS PROTRUDING FROM THE SURFACE THEREOF AT THE JUNCTURE OF THE FEED AND PNEUMATIC CHUTES, SEC- ONDARY FEED ROLLERS ABOVE THE PRIMARY ROLLER, AND AIRPERVIOUS WALL MEANS ON THE SECONDARY CHUTE.
Inventors
- 👤 Hermann Truetzschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:42
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/02; D01G23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |