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US4328841A Expired / Lapsed US ⏱️ 0.0 years remaining

Fabric with double leno warp threads

Assignee: Pfizer Italia SRL
•
Filing: 1980-04-10
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Granted: 1982-05-11
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Expires: 2000-04-10
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Abstract

Abstract A fabric with double leno warp threads having a warp comprising threads of elastomeric material, particularly adapted for the manufacture of elastic bands and body-belts. In such a fabric the threads of elastomeric material are firmly bound to the other threads of the fabric by double leno warp threads avoiding curliness and allowing the fabric to retain a high softness even after many washing operations.

Inventors

  • 👤 Giulio Fontana

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:02
CPC Classifications
D; D03; D03D; D03D13/00; D03D13/006; D03D15/00; D03D15/50; D03D15/56; D03D19/00

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 281 words
A fabric with double leno warp threads comprising a warp including rubbery material threads and binding threads, and a weft comprising upper weft threads and lower weft threads positioned above and respectively below the rubbery warp threads, to which they are substantially perpendicular, wherein the weft threads are bound to one another and to each of the rubbery threads by a lower leno warp thread and by an upper leno warp thread extending through one half turn about each rubbery thread between one binding with the weft and the next, with each of the lower turn binding threads passing over a first lower weft thread, then under and at the other side of the rubbery thread with which it is associated, under a first upper weft thread, over a second lower weft thread, a second upper weft thread and a third lower weft thread, then again under and at the first side of the rubbery thread, under a third upper weft thread, then over a fourth lower weft thread, a fourth upper weft thread and finally again over a new lower weft thread and so on, and with each upper turn binding thread passing over the first lower weft thread, over and at the other side over the rubbery thread, under the first upper weft thread, under the second lower weft thread, under the second upper weft thread, over and again at the first side of the rubbery thread, over the third lower weft thread, under the third upper weft thread, under the fourth lower weft thread, under the fourth upper weft thread, and again over the next lower weft thread and rubbery thread and so on to complete said fabric.
Claim 2
Dependent Claim 281 words
A fabric with double leno warp threads comprising a warp including rubbery material threads and binding threads, and a weft comprising upper weft threads and lower weft threads positioned above and respectively below the rubbery warp threads, to which they are substantially perpendicular, wherein the weft threads are bound to one another and to each of the rubbery threads by a lower leno warp thread and by an upper leno warp thread extending through one half turn about each rubbery thread between one binding with the weft and the next, with each of the lower turn binding threads passing over a first lower weft thread, then under and at the other side of the rubbery thread with which it is associated, under a first upper weft thread, over a second lower weft thread, a second upper weft thread and a third lower weft thread, then again under and at the first side of the rubbery thread, under a third upper weft thread, then over a fourth lower weft thread, a fourth upper weft thread and finally again over a new lower weft thread and so on, and with each upper turn binding thread passing over the first lower weft thread, over and at the other side over the rubbery thread, under the first upper weft thread, under the second lower weft thread, under the second upper weft thread, over and again at the first side of the rubbery thread, over the third lower weft thread, under the third upper weft thread, under the fourth lower weft thread, under the fourth upper weft thread, and again over the next lower weft thread and rubbery thread and so on to complete said fabric.
Claim 3
Dependent Claim 38 words
A fabric with double leno warp threads as in claim 1, wherein the interweaving of the binding threads is repeated on a rubbery thread adjacent a given rubbery thread, displaced by two weft threads in the fabric weave.
Claim 4
Dependent Claim 21 words
A fabric with double leno warp threads as in claim 2, wherein the weft threads are all identical to one another.
Claim 5
Dependent Claim 21 words
A fabric with double leno warp threads as in claim 1, wherein the weft threads are all identical to one another.
Claim 6
Dependent Claim 26 words
A fabric with double leno warp threads as in claim 4, wherein said weft threads comprise a mixing of 50% wool threads and 50% chlorofiber threads.

References Cited (Backward Citations)

DE629892C Cited
US1950559A Cited
FR739074A Cited
DE680530C Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-05-10 1985-11-09 1986-05-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-05-10 1989-11-09 1990-05-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-05-10 1993-11-09 1994-05-11 $7700.00 Window Closed / Lapsed

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