Patents by Inventor Michael M. Marshall

Michael M. Marshall 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: 5121961
    Abstract: An apparatus including a torso support housing, with a first and second leg support housing mounted longitudinally and pivotally relative to one another to permit interfolding of the structure during periods of transport and storage. The torso support housing includes a support leg receiving cavity to receive a pivotal support leg therewithin to enhance compactness of the organization in a stored and interfolding configuration. The organization further includes pneumatic chambers mounted coextensively with top surfaces of each support housing and selectively inflatable for enhanced comfort of an individual. A cup support holder and handle are retractably mounted within the torso support housing.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: June 16, 1992
    Inventor: Michael M. Marshall