Patents by Inventor Peter DeSousa

Peter DeSousa 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).

  • Pet elevator
    Patent number: 4027626
    Abstract: A device used in connection with the keeping of pets. A pet such as a hamster is confined to an area and must ascend one tube to descend in an elevator which triggers a feeding mechanism, and so arranged that he can take but one direction to complete a cycle which causes him to operate the mechanism in response to his need for food.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: June 7, 1977
    Inventor: Peter DeSousa
  • Small animal habitat
    Patent number: D256847
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: September 9, 1980
    Inventor: Peter DeSousa