Patents by Inventor Jose A. Amaral

Jose A. Amaral 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).

  • Construction blocks
    Patent number: 4258522
    Abstract: A system of construction blocks preferably constructed from plastic having interlocking sides, tops and bottoms which can be assembled with or without adhesive rather than mortar and which are strong, inexpensive, hollow and lightweight.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: March 31, 1981
    Inventor: Jose A. Amaral