Patents by Inventor Milton Otto

Milton Otto 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).

  • Safety-device for locking fire-arms
    Patent number: 5737864
    Abstract: A safety device for locking fire-arms prevents the use of a revolver by an unauthorized person. A main body of tubular configuration includes a key-core, which can be axially displaced and is arranged inside the main body. A locking element projects from a piece which contacts a spring. The spring contacts a bottom wall of the main body. An end of the locking device passes through a window in the bottom wall.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: April 14, 1998
    Inventor: Milton Otto