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US4307496A Expired / Lapsed US ⏱️ 0.0 years remaining

Warp-knitted lace strip, material fabric, and manufacturing method thereof

Assignee: Takeda Lace Co Ltd
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Filing: 1979-10-02
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Granted: 1981-12-29
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Expires: 1999-10-02
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Abstract

Abstract This invention is concerned with a new textile product in the form of a lace strip which is entirely warp-knitted with sinuate scallops. The scallops are manufactured from bent scallop-forming yarns and picots of which one end protrudes outwardly in a U-shape configuration. The novel lace strips are manufactured by forming chain stitch lines in step-like indentation by overlapping the scallop-forming yarns and passing the yarns in turn through a plurality of needles. Simultaneously picot-forming yarns are transversely positioned to produce protrusions from the scallops. In order to separate the scallops and their picots, the parts of the knitted fabric to be readily separated, said scallops and attached picots are knitted to soluble yarns which are subsequently dissolved to facilitate separation.

Inventors

  • 👤 Noboru Nakagaki
  • 👤 Yoyu Fujikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:05
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 66 words
The method of manufacturing an entirely warp-knitted lace strip into a knit portion which comprises: forming U-shaped picots from insoluble yarns which protrude from the edges of said scallops by knitting same into the edges of the scallops, providing soluble fabric portions adjacent to said insoluble scallop yarns and said insoluble picot yarns, and dissolving said soluble fabric portions to separate the scallops and picot portions.
Claim 2
Independent Claim 66 words
The method of manufacturing an entirely warp-knitted lace strip into a knit portion which comprises: forming U-shaped picots from insoluble yarns which protrude from the edges of said scallops by knitting same into the edges of the scallops, providing soluble fabric portions adjacent to said insoluble scallop yarns and said insoluble picot yarns, and dissolving said soluble fabric portions to separate the scallops and picot portions.

References Cited (Backward Citations)

US2365315A Cited
FR2079718A5 Cited
JPS484231U Cited
FR2297277A1 Cited
US4096610A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-12-28 1985-06-29 1985-12-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-12-28 1989-06-29 1989-12-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-12-28 1993-06-29 1993-12-29 $7700.00 Window Closed / Lapsed

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