Correction, 5/16/12, 12:01 a.m. EDT: The original version of this story incorrectly referred to the date of Dewey’s WARN notice and which of the firm’s insurance policies will extend through the end of the year. The second and seventeenth paragraphs below have been revised to include the correct information. We regret the error.

Dewey & LeBoeuf may not be officially dead yet, but as of Tuesday, it is closed.