Patents by Inventor Phillip R. Mitchell

Phillip R. Mitchell 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: 5062697
    Abstract: An apparatus including a first and second cylindrical body member separately and coaxially mounted relative to one another with the first body member including a resilient perimeter eye piece mounted about a forward terminal end thereof to permit viewing interiorly of the first cylindrical body member through a focusing lens. The focusing lens coaxially aligned with a plurality of fixed lenses positioned forwardly of a slide receptacle for a slide member directed therethrough for sampling of various blood samples therewithin. A sample transparency is positionable forwardly of the slide member to permit visual observation of normal and abnormal blood samples for comparison with a sample mounted within the slide member. Illumination means is mounted rearwardly of the slide member.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: November 5, 1991
    Inventor: Phillip R. Mitchell