Patents by Inventor Juan Alvarez Romero

Juan Alvarez Romero 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).

  • Footwear fabrication process
    Patent number: 3965516
    Abstract: A footwear fabrication process and product are disclosed. The footwear is characterized by flexibility, lightness and excellent ventilation.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: June 29, 1976
    Inventor: Juan Alvarez Romero