Patents by Inventor Henry P. Nava

Henry P. Nava 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).

  • Padlock with key indicator
    Patent number: 5309741
    Abstract: A padlock having a body, a U-shaped keeper at one end of the body, and a key receptor at the opposite end of the body, the body containing a row of pieces to be engaged by key teeth comprising an indicator device on the body; the device having a location on the body relative to the pieces to indicate the left or right directional orientation of key teeth insertion into the receptor, to effect opening of the padlock keeper; and the indicator device extending in the direction of key insertion.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: May 10, 1994
    Inventor: Henry P. Nava
  • Padlock with key indicator
    Patent number: 5303567
    Abstract: A padlock having a body, a U-shaped keeper at one end of the body, and a key receptor at the opposite end of the body, the body containing a row of pieces to be engaged by key teeth comprising an indicator device on the body; the device having a location on the body relative to the pieces to indicate the left or right directional orientation of key teeth insertion into the reception, to effect opening of the padlock keeper.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 19, 1994
    Inventor: Henry P. Nava