78374772
Feb 26, 2004
Oct 31, 2006
Active Trademark
Active noise reduction (ANR) technology not for telephone or medical use, namely, ANR earplugs for hearing protection, ANR headsets for hearing protection, digital noise canceling microphones, and digital controllers for use with ANR hearing protection systems; passive noise reduction technology not for telephone or medical use, namely, personal hearing protectors in the nature of ear cups and earplugs, and hearing protection communications systems for use with communication radios, intercom systems, or other communications network transceivers, said systems comprising headsets; augmented audio technology not for telephone or medical use, namely, microphones, data processors and audio speakers to measure and recreate sound for improved sound accuracy while wearing a helmet or hearing protector
Electrical and Scientific Apparatus