Patents by Inventor William H. Griffiths

William H. Griffiths 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).

  • Bathtub
    Patent number: D274641
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 10, 1984
    Assignee: Bonsack Baths Limited
    Inventor: William H. Griffiths
  • Bathtub
    Patent number: D276362
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: November 13, 1984
    Assignee: 501 Bonsack Baths (London Limited)
    Inventor: William H. Griffiths
  • Bathtub
    Patent number: D286671
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: November 11, 1986
    Assignee: Bonsack Baths (London) Limited
    Inventor: William H. Griffiths
  • Bathtub
    Patent number: D286808
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: November 18, 1986
    Assignee: Bonsack Baths (London) Limited
    Inventor: William H. Griffiths
  • Bathtub
    Patent number: D286809
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: November 18, 1986
    Assignee: Bonsack Baths (London) Limited
    Inventor: William H. Griffiths
  • Bathtub
    Patent number: D295666
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: May 10, 1988
    Assignee: Bonsack Baths (London) Limited
    Inventor: William H. Griffiths