Patents by Inventor Donald I. Small

Donald I. Small 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).

  • Desk top file
    Patent number: D252334
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: July 10, 1979
    Inventor: Donald I. Small
  • Single-level cat play structure
    Patent number: D455238
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: April 2, 2002
    Inventor: Donald I. Small
  • Multi-level cat play structure
    Patent number: D461937
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: August 20, 2002
    Inventor: Donald I. Small