CREATE TABLE table_name_35 (deleted VARCHAR2, listed VARCHAR2, name VARCHAR2)

On what date was Stauffer Chemical Company (Lemoyne Plant), which was listed on 09/21/1984, deleted?
SELECT deleted FROM table_name_35 WHERE listed = "09/21/1984" AND name = "stauffer chemical company (lemoyne plant)"
SELECT "deleted" FROM "table_name_35" WHERE "09/21/1984" = "listed" AND "name" = "stauffer chemical company (lemoyne plant)"