Patents by Inventor Livingston Foster

Livingston Foster 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).

  • Automatic safety syringe construction
    Patent number: 6217559
    Abstract: A safety syringe construction (10) including a conventional syringe member (20) equipped with a fixed tubular male sleeve member (20) and spring biased moveable tubular female sleeve member (30) which is slidable relative to the tubular male sleeve member (30). The male (30) and female (40) sleeve members are provided with a locking unit (15) for releasably engaging the female sleeve member (40) relative to the male sleeve member (30).
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: April 17, 2001
    Inventor: Livingston Foster