Patents by Inventor Masahisa Okubo

Masahisa Okubo 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).

  • Combined plaything and receptacle for infants
    Patent number: 4265461
    Abstract: This invention discloses a combination of a vaulting box and a wooden horse used as means of plaything for infants, the interior of the vaulting box serving as a receptacle. The upper structural frames may all be received into the lower structural frames so that they may be conveniently stored and carried.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: May 5, 1981
    Inventor: Masahisa Okubo