Patents by Inventor Antonio Iruretagoyena

Antonio Iruretagoyena 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).

  • Cartridge construction
    Patent number: 4020763
    Abstract: An improved cartridge comprising an outer case member, an inner base member and an intermediate bushing member wherein the case may be plastic or similar material, the inner base member is of plastic or any other material, and the bushing member formed by injection between the case member and the base member. The intermediate bushing formed and interposed between the case member and the base member closely joins the case to the base to form a monobloc assembly.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: May 3, 1977
    Inventor: Antonio Iruretagoyena