Several veterans opened food stands to supplement their student incomes on the GI Bill after World War II, but Maurie Berman wanted something different. "He wanted to open something more noteworthy," said his son, Scott Berman, 64. "A building, a tower, something with some identity." So was born the friendly, family-run Northwest Side vintage drive-in Superdawg, with its order booth that looks like an airport control tower and its two 12-foot-tall papier-mache hot dogs designed in 1948 that stand on its roof. Mr. Berman died Sunday, May 17, of heart problems at 89, his son said.