Patents by Inventor Cornelis VAN Amsterdam

Cornelis VAN Amsterdam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Joining stiffening material to shoe upper using UHF field
    Patent number: 4069602
    Abstract: Formable or formed stiffening materials, especially for shoe capping, consisting of: at least one backing or layer of fibrous material and at least one thermoplastic synthetic resin, optionally containing fillers, plasticizers, dyes, pigments and/or stabilizers against light, heat and/or mechanical influences, which stiffening materials in a given case have an adhesive coating on one or both sides based on a thermoplastic synthetic resin, containing at least 3 parts of an active substance, e.g., carbon black, in 100 parts of thermoplastic synthetic resins.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: January 24, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler
    Inventors: Paul Kremer, Bernhard Gora, Cornelis VAN Amsterdam