Patents by Inventor Elizabeth M. Wisner

Elizabeth M. Wisner 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).

  • Patent number: 4286634
    Abstract: A plastic sample container with an attached collapsible funnel comprising several frusto-conical rings which interlock with one another in a raised position to form a funnel attached to an upright neck of the container. The funnel may be collapsed into the form of separate rings which rest upon radially extending upstanding support members attached to the top of the container. When the funnel is collapsed, the upper surfaces of the supporting members, the upper edges of the individual frusto-conical rings, and the top of a removable cap for the neck of the container all fall within a plane generally parallel with the bottom of the container, allowing several of the containers to be stacked one upon another. Graduations are provided on the side of the container, which is preferably constructed of tough translucent material, permitting visual ascertainment of the volume of a sample contained therein.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: September 1, 1981
    Inventor: Elizabeth M. Wisner