Patents by Inventor Karen Robbins Bigler

Karen Robbins Bigler 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: 5794980
    Abstract: Apparatus and processes for educating and entertaining persons. Said apparatus having one or more primary sheets with cuts, slits, or slots therein, through which a plurality of cards or strips are woven to form a foldable device. Said apparatus having an upper or exterior surface upon which a first indicia may be printed or appear. Said apparatus capable of folding to cause the first indicia to be covered and reveal an otherwise hidden second indicia printed or appearing thereon. Said invention further including the processes for manufacturing and using said apparatus.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: August 18, 1998
    Inventor: Karen Robbins Bigler