Patents Represented by Attorney Muray Schaffer

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  • Method of preparing the backer for the manufacture of man-made leather
    Patent number: 3947316
    Abstract: A method of preparing a backer for use in the production of man-made leather containing from 20 to 50% by weight of tanned collagen fibrous material.
    Type: Grant
    Filed: December 21, 1971
    Date of Patent: March 30, 1976
    Assignee: Statni vyzkumny ustav kozedelny
    Inventors: Milan Kremr, Vaclav Hrabovsky