Dominique Strauss-Kahn’s much-anticipated court date in his sexual assault case has been postponed for more than three weeks as prosecutors continue investigating. Mr. Strauss-Kahn’s lawyers said yesterday they would agree to put off the Aug. 1 date to Aug. 23. They say they hope that by then, prosecutors will have decided to dismiss the case. The Manhattan District Attorney’s Office had no immediate comment.

Mr. Strauss-Kahn is the former leader of the International Monetary Fund. He faces attempted rape and other charges after being accused of attacking a hotel housekeeper who came to clean his suite on May 14. He denies the charges. Prosecutors said on July 1 that the case had weakened because the maid had lied to them about her background and was inconsistent about her actions after the encounter.