US3365875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite elastic yarns
Assignee: Chemstrand Ltd
•
Filing: 1966-01-07
•
Granted: 1968-01-30
•
Expires: 1986-01-07
Abstract
No abstract record available.
Inventors
- 👤 Hall Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:09
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A METHOD FOR PRODUCING A COMPOSITE ELASTIC YARN WHICH COMPRISES THE STEPS OF: (A) PROVIDING AT LEAST ONE BULKED THERMOPLASTIC YARN ON A PACKAGE, (B) UNWINDING SAID YARN FROM SAID PACKAGE SO AS TO REMOVE THE ADDED BULK OF THE YARN, (C) FEEDING SAID YARN TO A SERIES OF CAPSTAN ROLLS, (D) PROVIDING AN ELASTIC FILAMENT ON A ROTATABLY DRIVEN PACKAGE GEARED TO SAID CAPSTAN ROLLS, (E) FEEDING SAID ELASTIC FILAMENT TO SAID CAPSTAN ROLLS TO JOIN SAID THERMOPLASTIC YARN, THE RATIO OF THE SURFACE SPEED OF THE CAPSTAN ROLLS TO THE SURFACE SPEED OF THE ROTATABLY DRIVEN PACKAGE BEING VARIABLE TO CAUSE THE ELASTIC FILAMENT TO BE STRETCHED A PREDETERMINED AMOUNT BETWEEN THE ROTATABLY DRIVEN PACKAGE AND THE CAPSTAN ROLLS,
Claim 2
Independent Claim
121 words
A METHOD FOR PRODUCING A COMPOSITE ELASTIC YARN WHICH COMPRISES THE STEPS OF: (A) PROVIDING AT LEAST ONE BULKED THERMOPLASTIC YARN ON A PACKAGE, (B) UNWINDING SAID YARN FROM SAID PACKAGE SO AS TO REMOVE THE ADDED BULK OF THE YARN, (C) FEEDING SAID YARN TO A SERIES OF CAPSTAN ROLLS, (D) PROVIDING AN ELASTIC FILAMENT ON A ROTATABLY DRIVEN PACKAGE GEARED TO SAID CAPSTAN ROLLS, (E) FEEDING SAID ELASTIC FILAMENT TO SAID CAPSTAN ROLLS TO JOIN SAID THERMOPLASTIC YARN, THE RATIO OF THE SURFACE SPEED OF THE CAPSTAN ROLLS TO THE SURFACE SPEED OF THE ROTATABLY DRIVEN PACKAGE BEING VARIABLE TO CAUSE THE ELASTIC FILAMENT TO BE STRETCHED A PREDETERMINED AMOUNT BETWEEN THE ROTATABLY DRIVEN PACKAGE AND THE CAPSTAN ROLLS,
References Cited (Backward Citations)
US3011302A
Cited
US3069883A
Cited
US3115745A
Cited
US3166885A
Cited
US3234725A
Cited
US3300956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |