Patents by Inventor Deborah K. Zak

Deborah K. Zak 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).

  • Travel case with screw-in containers
    Patent number: 4690271
    Abstract: The containers have screw threads on their lower extremities which mate with corresponding screw-threaded elements integral with a rigid bottom of the travel case. These elememts may be projections or indented receptacles. The containers may be screwed to each other when removed from the case.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: September 1, 1987
    Inventor: Deborah K. Zak