Patents by Inventor Carol A. Sirko

Carol A. Sirko 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).

  • Greeting card
    Patent number: 4952091
    Abstract: A greeting card having a message surface area and a retention strip extending past the edge of the card portion with ring receptors within the retention strip for placement in a ring binder and perforations parallel to and near the inner edge of the retention strip for either ease of folding into the card for mailing or removal of the retention strip from the card and mailing.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: August 28, 1990
    Inventor: Carol A. Sirko