Patents by Inventor Isaak Mirmilshteyn

Isaak Mirmilshteyn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5293647
    Abstract: A headset comprising: a headband, two ear cups, coupling means for rotatively coupling the ear cups to the headband for adjustably varying the location of each ear cup relatively to the headband and for simultaneously adjustably varying the pressure of each ear cup on the ears of the user. Securement means provide effective fixing of the ear cups in each chosen location. Moreover, the headset as a whole can be provided in a compact size for the purpose of carrying or keeping.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: March 15, 1994
    Inventors: Michael Mirmilshteyn, Isaak Mirmilshteyn, Gennady Mirmilshteyn