Patent US3081593A successfully refreshed from Google Patents.
US3081593A
Expired / Lapsed
US
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Method of treating synthetic yarns
Assignee: Akzona Inc
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Filing: 1960-06-15
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Granted: 1963-03-19
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Meerdink Anton Frederik George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:46
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A METHOD FOR TREATING YARN FORMED FROM SYNTHETIC LINEAR POLYCONDENSATION PRODUCTS TO ELIMINATE PIRN BARRE'' WHEN WOVEN INTO FABRIC, COMPRISING THE STEPS OF SUCCESSIVELY DRWAING SAID YARN, INTERALLY RELAXING SAID YARN WHILE MAINTAINING SUBSTANTIALLY CONSTANT THE LENGTH THEREOF, TWISTING SAID YARN WHILE COLLECTING THE SAME ON A PIRN, AND REWINDING THE DRAWN AND TWISTED YARN ONTO A CROSSWOUND PACKAGE WITHIN 48 HOURS FROM THE TIME OF ORIGINAL COLLECTION.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |