PITTSBURGH (AP) – Eat’n Park isn’t all smiles over smiley face cookies it says are confusingly similar to its own trademark treats.

Eat’n Park is suing Chicago American Sweet & Snacks Inc. for trademark infringement.

The Homestead-based chain wants a judge to block Chicago American from selling its chocolate cream-filled Smiley’s cookies.

Eat’n Park has been selling its iconic, white Smiley cookies since 1985 and has incorporated them into its advertising, menus and logo.

The company has held a trademark on the cookie design since 1987.

Chicago American did not immediately respond to a message.

Join The Conversation On The KDKA Facebook Page

Stay Up To Date, Follow KDKA On Twitter

(Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)