Patents by Inventor Lanny R. Rothstein

Lanny R. Rothstein 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).

  • Jewelry clasp
    Patent number: 5272795
    Abstract: Jewelry clasp comprising a male clasp member functioning as a leaf spring and a female clasp member to receive the leaf spring and be locked in place when fully inserted; and to be unlocked by manual finger pressure against the leaf spring device by access means which protect against unintentional unlocking pressure.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: December 28, 1993
    Inventor: Lanny R. Rothstein