US3564833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction false twisting
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1969-01-22
•
Granted: 1971-02-23
•
Expires: 1989-01-22
Abstract
Abstract APPARATUS FOR FRICTION FALSE TWISTING IN WHICH A TWIST BARRIER COMPRISING A STATIONARY CYLINDRICAL PIN IS SO POSITIONED AT A DISTANCE OF THE ORDER OF 1/8 INCH FROM THE PERIPHERY OF THE OUTLET END OF A FRICTION FALSE TWIST TUBE WITH WHICH THE YARN BEING FALSE TWISTED MAKES FRICTIONAL CONTACT AND TO GUIDE MEANS AROUND OR THROUGH WHICH THE YARN IS WITHDRAWN FROM SAID TWIST TUBE THAT THE YARN MAY BE PARTIALLY WRAPPED AROUND SAID PIN WITH AN ARC OF CONTACT THEREWITH OF BETWEEN 60* AND 100*.
Inventors
- 👤 Roy Spencer Holliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:38
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0266
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |