Patents by Inventor Dorothy H. Alcorn

Dorothy H. Alcorn 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).

  • Bird figure
    Patent number: 5283088
    Abstract: An improved bird figure having a multi-vaned wing structure which is mounted to rotate about the longitudinal axis of the wing structure to provide a somewhat blurred motion simulating the rapid beating of hummingbird wings.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: February 1, 1994
    Inventor: Dorothy H. Alcorn