A sternly-worded followup letter caused Fox to withdraw the trademark application if the NFL reimbursed him for his $1,000 application fee.
When the league turned that down, he asked for season tickets to Colts games or a signed photo of NFL Commissioner Roger Goodell -- the latter because Fox wanted to include "the most ridiculous or smallest thing I could ask for."
Both requests were denied outright, and triggered a warning that if Fox didn't abandon his trademark effort by Nov. 7, the NFL would sue him in court and attempt to recover its legal costs from him.
That convinced Fox to withdraw the application on Oct. 24, even though similar challenges to unclaimed trademarks have failed in the past.
"I don't have that kind of money,” he said. “I couldn't take that chance.”
The Anderson, Ind., Herald Bulletin contributed details to this story.