US3373470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for crimping yarn
Assignee: Rhodiaceta SA
•
Filing: 1964-03-27
•
Granted: 1968-03-19
•
Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 Joly Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12; D02G1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR STUFFER CRIMP ING THERMOPLASTIC FILAMENTS, SUCH PROCESS COMPRISING INTRODUCING THE FILAMENTS TO BE CRIMPED INTO ONE END OF THE ELONGATE CONFINED SPACE BY MEANS OF A CURRENT OF FLUID UNDER PRESSURE AND AT A TEMPERATURE SUFFICIENT TO SET THE FILAMENTS, TIGHTLY PACKING SAID FILAMENTS INTO SAID CONFINED SPACE BY CONTROLLABLY RELEASING PART OF SAID FLUID FROM CONFINED SPACE LATERALLY OF THE CONFINED SPACE AT A POSITION SPACED FROM THE OTHER END OF SAID SPACED AND FORCING THE PACKED
Claim 2
Dependent Claim
81 words
A PROCESS FOR STUFFER CRIMP ING THERMOPLASTIC FILAMENTS, SUCH PROCESS COMPRISING INTRODUCING THE FILAMENTS TO BE CRIMPED INTO ONE END OF THE ELONGATE CONFINED SPACE BY MEANS OF A CURRENT OF FLUID UNDER PRESSURE AND AT A TEMPERATURE SUFFICIENT TO SET THE FILAMENTS, TIGHTLY PACKING SAID FILAMENTS INTO SAID CONFINED SPACE BY CONTROLLABLY RELEASING PART OF SAID FLUID FROM CONFINED SPACE LATERALLY OF THE CONFINED SPACE AT A POSITION SPACED FROM THE OTHER END OF SAID SPACED AND FORCING THE PACKED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |