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US3671375A Expired / Lapsed US ⏱️ 0.0 years remaining

Leather-like three layer laminate

Assignee: UNIROYAL PLASTICS COMPANY Inc WORLD HEADQUARTERS MIDDLEBURY CT 06749 A CORP OF
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Filing: 1970-10-09
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Granted: 1972-06-20
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Expires: 1990-10-09
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Abstract

Abstract A NOVEL, BREATHABLE, LEATHER-LIKE THREE LAYER LAMINATE IS PRODUCED HAVING A FABRIC BACKING LAYER, AN INTERMEDIATE BREATHABLE SPONGE LAYER AND AN UPPER BREATHABLE SURFACE LAYER BY A METHOD IN WHICH A SUBSTANTIALLY UNIFORM MIXTURE OF A FLUID ORGANIC PLASTIC FILM FORMING MATERIAL AND A MELTABLE MATERIAL INCOMPATIBLE THEREWITH IS FORMED INTO A THIN SURFACE LAYER, THERE IS FORMED ON THE THIN LAYER A THICKER BODY LAYER FROM A SUBSTANTIALLY UNIFORM MIXTURE OF A FLUID ORGANIC PLASTIC FILM FORMING MATERIAL CONTAINING A MELTABLE MATERIAL IMCOMPATIBLE THEREWITH, AND A BLOWING AGENT, WITH SAID INCOMPATIBLE MELTABLE MATERIAL IN EACH SAID LAYER BEING IN A PHYSICAL FORM HAVING A BULK DENSITY LESS THAN ITS ACTUAL DENSITY, A FABRIC IS APPLIED TO THE BODY LAYER, THE FILM FORMING MATERIAL IN THE TWO LAYERS IS FORMED INTO A UNITARY FILM BONDED TO THE FABRIC, THE BODY LAYER IS SPONGED BY DECOMPOSING A BLOWING AGENT, AND THE INCOMPATIBLE MATERIAL IN THE TWO LAYERS IS MELTED AFTER A MATRIC HAS BEEN FORMED OF THE TWO LAYERS.

Inventors

  • 👤 Edward C Van Buskirk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:26
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/18; B32B27/22; C; C08; C08J; C08J9/00; C08J9/04; B32B25/00; B32B25/04; B32B25/045; B32B27/06; B32B27/065; B32B27/30; C08J9/06; C08J9/10; D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; D06N3/142; D06N3/144; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2305/00; B32B2305/02; B32B2305/026; B32B2437/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T442/00; Y10T442/30; Y10T442/3325

Claims Analysis

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References Cited (Backward Citations)

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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) 1975-06-20 1975-12-20 1976-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-20 1979-12-20 1980-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-20 1983-12-20 1984-06-20 $7700.00 Window Closed / Lapsed

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