Patents Represented by Attorney Allan W. Leiser

Find this attorney in the Justia Lawyer Directory

  • Headphone earpiece
    Patent number: D244213
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: May 3, 1977
    Assignee: Koss Corporation
    Inventor: Joseph C. Besasie
  • Headphone
    Patent number: D244300
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: May 10, 1977
    Assignee: Koss Corporation
    Inventor: Joseph C. Besasie
  • Headphone earpiece
    Patent number: D244301
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: May 10, 1977
    Assignee: Koss Corporation
    Inventor: Joseph C. Besasie