Patents by Inventor Alvin Schiffman

Alvin Schiffman 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).

  • Children's activity center
    Patent number: D326191
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: May 19, 1992
    Assignee: Jis, Inc.
    Inventor: Alvin Schiffman
  • Child's wheeled vehicle
    Patent number: D337622
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: July 20, 1993
    Assignee: Radio Flyer Inc.
    Inventor: Alvin Schiffman
  • Child's activity rocker
    Patent number: D339001
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: September 7, 1993
    Assignee: Jis, Inc.
    Inventor: Alvin Schiffman