Patents by Inventor Frederic D. Schoenberg

Frederic D. Schoenberg 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).

  • Safety razor
    Patent number: 5307564
    Abstract: A safety razor having two independent separate shaving heads for shaving with and against the grain by pulling the handle of the razor across a working surface, then turning the handle about its longitudinal axis and using the other head by pushing the handle to shave against the grain. The shaving head used by pulling is mounted at an angle with respect to the handle and the head used by pushing is mounted substantially parallel to the handle.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: May 3, 1994
    Inventor: Frederic D. Schoenberg