How can I get grandparents right to see our grandson?

You can file a motion or petition under Wisconsin's so called "grandparents'statute" to seek visitation with your grandchild. There is a recent WI Supreme Court case that indicated that  it is not necessary to have maintained a parent like relationship to be allowed under the law to file a request. You can read about the  landmark decision in a blog I wrote at our law firm's web site under family law issues.