Patents by Inventor Sandro Pignotti

Sandro Pignotti 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).

  • Snap closure device
    Patent number: 5168607
    Abstract: A snap closure device, in particular for jewellery, costume jewellery trinkets and the like, comprising a body with a hook part open on one side and a closing member hinged onto the body. The closing member has a closure part for closing the hook, a part for resiliently engaging on the body and an operating part, and it is movable between an open position, in which the hook part is open towards the outside, and a snap closed position, in which the closing member engages the body and closes the hook.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 8, 1992
    Inventor: Sandro Pignotti