Patents by Inventor Juan Carlos Corral Ballesteros

Juan Carlos Corral Ballesteros 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).

  • Patent number: 4104435
    Abstract: A sponge includes a three-dimensional fibrous reticular structure formed of fibers randomly arranged and connected to each other at points where they intersect, and a body of compressibly resilient foamed material formed around the fibrous structure to fill and engulf the fibrous structure with the foamed material intimately bonded to the fibers to form an integral and resilient sponge. Portions of the fibers extend outward from at least one surface of the sponge, and the fiber structure is stronger and more abrasive than the foamed material. Also, the ratio by weight of the foamed material to the total weight including the fibrous structure ranges from 20 to 80%.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: August 1, 1978
    Assignee: Suilene Argentina S.A.
    Inventor: Juan Carlos Corral Ballesteros