Patents by Inventor Marshall T. Dennison

Marshall T. Dennison 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: 4353868
    Abstract: A specimen collecting and transporting device is provided which includes a container, a swab in the container connected to a closure cap closing one end of the container, and a reservoir attached to the other end of the container and containing a liquid culture-sustaining medium sealed in a chamber of the reservoir. The bottom end of the container has an opening covered by an absorbent pad and which is in contact with the swab tip. The container has a projection which when moved relatively toward the reservoir, pierces the chamber seal to allow the medium to flow through the opening to the pad and swab tip.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: October 12, 1982
    Assignee: Sherwood Medical Industries Inc.
    Inventors: Joel A. Joslin, Marshall T. Dennison