Yes, Virginia, you can trademark a font (no, not a fount, at least not this kind of fount).
See story at BlueOregon and What The FOnt? The Great GOrdOn Smith LOgO Mystery (at DuckSportNews).
More:
2) U.S. Patent and Trademark Office (direct link to Trademark pages): Don’t forget to look at their Mumbo Jumbo Gumbo kids pages!