Burger King fights lawsuit over claims Whoppers are smaller than advertised

Customers filed a lawsuit claiming Burger King misrepresents the size of Whoppers in ads and menus.
Judge rejects Burger King's bid to dismiss the lawsuit, allowing it to proceed on some claims.
Lawsuit alleges Whoppers are 35% smaller and contain less meat than shown in ads.
Claims relate to in-store menu boards; TV and online ads dismissed.
McDonald's, Wendy's and Taco Bell face similar lawsuits over food sizes.