WALTHAM, Mass. & CAMBRIDGE, Mass.--(BUSINESS WIRE)--PerkinElmer, Inc. (NYSE: PKI), a global technology leader in Health Sciences, today announced that the waiting period under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act of 1976, as amended, expired on October 24, 2007, with respect to its tender offer for ViaCell, Inc. (Nasdaq: VIAC).
