Patents by Inventor Tarsis Octavio Costa

Tarsis Octavio Costa 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).

  • Convertible sofa-chair
    Patent number: 4007961
    Abstract: A convertible sofa-chair is disclosed as including a pair of hollow bases operatively connected by hinged platform pieces which are foldable to permit conversion between a sitting device and a sleeping device; the two bases are spaced from each other when used as a sleeping device and are telescoped together when used as a sitting device.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: February 15, 1977
    Inventor: Tarsis Octavio Costa