Patents by Inventor David William Chisnall

David William Chisnall 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).

  • Child's rattle
    Patent number: 4031658
    Abstract: A child's rattle made of synthetic plastics from three components which can be assembled easily and which consists of a hollow bell-like member, a tube arranged to pass through aligning holes through the member and which engages the member by a snap fit to lock to same, and a clapper for mounting on the tube within the bell-like member. The tube enables a number of the rattles to be strung on a cord as a pram toy.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: June 28, 1977
    Inventor: David William Chisnall
  • Rattle
    Patent number: D243547
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: March 1, 1977
    Inventors: David Day, David William Chisnall