Patents by Inventor Doris Warcholik

Doris Warcholik 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: D317342
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: June 4, 1991
    Inventor: Doris Warcholik
  • Patent number: D317798
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: June 25, 1991
    Inventor: Doris Warcholik