US3619874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Travelling-edge crimper and process
Assignee: Honeywell International Inc
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Filing: 1970-01-16
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Granted: 1971-11-16
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Expires: 1990-01-16
Abstract
Abstract A THERMOPLASTIC YARN IS CRIMPED AT INCREASED SPEEDS BY GUIDING A RUNNING LENGTH OF THE YARN UNDER CONTROLLED TENSION AND TEMPERATURE AT AN ACUTE ANGLE OVER AN EDGE IN AN APPARATUS IN WHICH THE CRIMPING EDGE ITSELF TRAVELS IN A DIRECTION WITH THE MOVING YARN.
Inventors
- 👤 Hsin Lang Li
- 👤 Dusan C Prevorsek
- 👤 Hendrikus Johan Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:26
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/10
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |