Patent US3570267A successfully refreshed from Google Patents.
US3570267A
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US
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Hydraulic drive for a circular knitting machine
Assignee: Elitex Zavody Textilniho
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Filing: 1969-01-16
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Granted: 1971-03-16
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Expires: 1989-01-16
Abstract
Abstract THE NEEDLE CYLINDER OF A CIRCULAR KNITTING MACHINE IS ROTATED BY A FLUID OPERATION MOTOR WHOSE SPEED AND DIRECTION OF ROTATION IS CONTROLLED BY VALVE MEANS, INCLUDING PROGRAM CONTROLLED VALVES.
Inventors
- 👤 Jiri Kurka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:26
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/94
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |