The owner of Whisler's Drive Up restaurant in Carthage, Missouri, filed a trademark-infringement lawsuit against the owner of a Whisler's restaurant in Springfield, Missouri, according to the Springfield News-Leader. Whisler's Drive Up has been operating at 300 N. Garrison Ave., in Carthage since 1953 on an alignment that was marked Route 66 from the 1930s … Continue reading Carthage restaurant sues Springfield eatery for trademark violation