Patents by Inventor John J. Scala

John J. Scala 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).

  • Platform for stairs
    Patent number: 4457397
    Abstract: This invention relates to new and useful improvements in a platform for stairs, and the principal object of the invention is to provide a device which may be effectively employed as a scaffold structure for stairs, or a step-up platform to reach portions of the ceiling and the walls of a room.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: July 3, 1984
    Inventor: John J. Scala