Patents by Inventor Joao Alexandre, Jr.

Joao Alexandre, Jr. 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).

  • Building system
    Patent number: 3956862
    Abstract: A building system uses preformed blocks which are specially designed so that they key together when stacked to resist lateral movement and thus form a sturdy, load-bearing wall which does not require any mortar. In addition to a standard block, the system includes keyable corner and partition blocks as well as a cap block to provide appropriate smooth borders for windows, doors and the like.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: May 18, 1976
    Inventor: Joao Alexandre, Jr.