Patents by Inventor Maria L. Rubio

Maria L. Rubio 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: 4795350
    Abstract: An educational toy for teaching children the alphabet has a circular or oval base with a plurality of upstanding support rods. Four horizontal mounting rods are supported by the upstanding support rods. The ends of the horizontal mounting rods are each provided with a safety ball tip. A canvas pouch is suspended from the horizontal mounting rods. The canvas pouch is completely closed except for a reach-in top slit opening. A plurality of chips are imprinted on one side with a letter of the alphabet and on the opposite side with the picture of an item having a name beginning with that letter. Another form of chip is printed on one side with a numeral and on the other side by a number of dots corresponding to that numeral. In use, childern remove or insert the chips into the pouch, naming the letter or numeral on each chip.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: January 3, 1989
    Inventor: Maria L. Rubio