US3093879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of multifilament bulk yarns
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1960-10-11
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Granted: 1963-06-18
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Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Yamamoto Makoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:44
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/164
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN THE BULKING OF YARN WHEREIN YARN IS INTRODUCED INTO A BULKING ZONE FOR CONFINED CONTACT WITH GASES UNDER PRESSURE AND THE BULKED YARN AND THE GASES ARE WITHDRAWN THROUGH A NOZZLE, THE PROCESS OF CLEANING THE SURFACES OF SAID ZONE AND OF SAID NOZZLE WHICH COMPRISES INTERMITTENTLY INTRODUCING A LIQUID INTO SAID BULKING ZONE IN A FORM ADAPTED TO BE ATOMIZED BY SAID GASES AND BROUGHT INTO CONTACT WITH SAID SURFACES OF SAID ZONE AND OF SAID NOZZLE BY THE ACTION OF SAID GASES, SAID LIQUID BEING INTRODUCED BY DROPPING IT UPON THE YARN AT ITS POINT OF ENTRY INTO SAID ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |