US3330018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making crimped yarn
Assignee: Duplan Corp
•
Filing: 1965-02-11
•
Granted: 1967-07-11
•
Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 Edward E Silver
- 👤 Palmer William Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:06
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/002; D04; D04B; D04B1/00; D04B1/22; D04B19/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A METHOD OF MAKING A YARN HAVING SUBSTANTIAL STRETCHABILITY AND RECOVERABILITY AND INCLUDING SUBSTANTIALLY STRAIGHT SECTIONS SERIALLY ARRANGED WITH CRIMPED SECTIONS, SAID METHOD COMPRISING THE STEPS OF (A) KNITTING A FABRIC OF A STRAIGHT YARN WHILE FORMING SUCCESSIVE COURSES HAVING SUBSTANTIALLY STRAIGHT PORTIONS SERIALLY ARRANGED WITH PORTIONS FORMED INTO STITCH LOOPS, (B) SETTING THE STRAIGHT AND STITCH LOOP PORTIONS IN THE YARN, AND (C) UNRAVELING THE FABRIC TO RECOVER THE YARN THEREFROM WITH THE UNRAVELED STITCH LOOP PORTIONS DEFINING CRIMPED SECTIONS WHEREIN EACH CRIMP WHEN IN RELAXED CONDITION HAS THE CONFIGURATION OF A KNITTED STITCH LOOP.
Claim 2
Independent Claim
96 words
A METHOD OF MAKING A YARN HAVING SUBSTANTIAL STRETCHABILITY AND RECOVERABILITY AND INCLUDING SUBSTANTIALLY STRAIGHT SECTIONS SERIALLY ARRANGED WITH CRIMPED SECTIONS, SAID METHOD COMPRISING THE STEPS OF (A) KNITTING A FABRIC OF A STRAIGHT YARN WHILE FORMING SUCCESSIVE COURSES HAVING SUBSTANTIALLY STRAIGHT PORTIONS SERIALLY ARRANGED WITH PORTIONS FORMED INTO STITCH LOOPS, (B) SETTING THE STRAIGHT AND STITCH LOOP PORTIONS IN THE YARN, AND (C) UNRAVELING THE FABRIC TO RECOVER THE YARN THEREFROM WITH THE UNRAVELED STITCH LOOP PORTIONS DEFINING CRIMPED SECTIONS WHEREIN EACH CRIMP WHEN IN RELAXED CONDITION HAS THE CONFIGURATION OF A KNITTED STITCH LOOP.
Claim 3
Independent Claim
116 words
A METHOD OF MAKING A YARN HAVING SUBSTANTIAL STRETCHABILITY AND RECOVERABILITY AND INCLUDING SUBSTANTIALLY STRAIGHT SECTIONS SERIALLY ARRANAGED WITH CRIMPED SECTIONS, SAID METHOD COMPRISING THE STEPS OF (A) KNITTING A FABRIC OF A STRAIGHT YARN WHILE FORMING SUCCESSIVE COURSES CONSISTING OF STITCH LOOPS, (B) SETTING THE FABRIC IN SELECTED AREAS WHILE LEAVING THE REMAINING AREAS OF THE FABRIC UNSET AND SETTING THE STITCH LOOPS IN THE YARN IN SAID SELECTED AREAS OF THE FABRIC, AND (C) UNRAVELING THE FABRIC TO RECOVER THE YARN THEREFROM WITH THE STITCH LOOPS IN THE YARN OF SAID SELECTED AREAS OF THE FABRIC DEFINING CRIMPED SECTIONS WHEREIN EACH CRIMP WHEN IN RELAXED CONDITION HAS THE CONFIGURATION OF A KNITTED STITCH LOOP.
Claim 4
Independent Claim
116 words
A METHOD OF MAKING A YARN HAVING SUBSTANTIAL STRETCHABILITY AND RECOVERABILITY AND INCLUDING SUBSTANTIALLY STRAIGHT SECTIONS SERIALLY ARRANAGED WITH CRIMPED SECTIONS, SAID METHOD COMPRISING THE STEPS OF (A) KNITTING A FABRIC OF A STRAIGHT YARN WHILE FORMING SUCCESSIVE COURSES CONSISTING OF STITCH LOOPS, (B) SETTING THE FABRIC IN SELECTED AREAS WHILE LEAVING THE REMAINING AREAS OF THE FABRIC UNSET AND SETTING THE STITCH LOOPS IN THE YARN IN SAID SELECTED AREAS OF THE FABRIC, AND (C) UNRAVELING THE FABRIC TO RECOVER THE YARN THEREFROM WITH THE STITCH LOOPS IN THE YARN OF SAID SELECTED AREAS OF THE FABRIC DEFINING CRIMPED SECTIONS WHEREIN EACH CRIMP WHEN IN RELAXED CONDITION HAS THE CONFIGURATION OF A KNITTED STITCH LOOP.
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |