Mr. Banks joined Burnett in 1951 and became a VP in 1955. He established himself as an industry spokesman on the subject of advertising to children, and became the subject of an Art Buchwald column shortly before his retirement from Burnett in 1980.
Following retirement, he taught for five years at the University of Grenoble in France.
"Seymour was a man of amazing dimensions," said Jack Hanrahan, senior VP-media director at Burnett. "One of the reasons he was such an outstanding representative of the advertising industry was his sensitivity to the feelings of people with whom he disagreed."