NEW YORK - The liquidating trustee in the Chapter 11 proceeding of former law firm Dewey & LeBoeuf on Aug. 2 filed a brief arguing that the deadline upon which objections can be filed to claims made against the bankruptcy estate should be extended to Jan. 16 (In Re: Dewey & LeBoeuf, No. 12-12321, Chapter 11, S.D. N.Y. Bkcy.).