Patents by Inventor Edward E. Dvorak

Edward E. Dvorak 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).

  • Ear tag for animals
    Patent number: 4425726
    Abstract: An identification tag for application to an ear of cattle or other animals which includes a body portion of elongated shape constructed of a semi-flexible plastic material for adherence to the curved contour of the portion of the ear to which the tag is attached. A plurality of fastening members secure the tag to the ear for securely holding the tag in position, the head of at least one of the securing members being molded into the tag body. A second fastening member may extend through a longitudinal slot in the tag body in order to allow for growth of the ear in the case of young animals.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: January 17, 1984
    Inventor: Edward E. Dvorak
  • Ear tag for animals
    Patent number: D279318
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: June 18, 1985
    Inventor: Edward E. Dvorak
  • Ear tag for animals
    Patent number: D279414
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: June 25, 1985
    Inventor: Edward E. Dvorak