Patents by Inventor Nuno J. Sousa

Nuno J. Sousa 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).

  • Self-closing beverage lid
    Patent number: 5706972
    Abstract: A self-closing beverage lid including a lid portion adapted for sealable coupling with an open top end of a container. The lid portion has an opening therethrough adjacent to a peripheral edge thereof. A spring biased sealing member is selectively disposed over the opening within an interior of the lid portion.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: January 13, 1998
    Inventor: Nuno J. Sousa