Patents by Inventor Larry D. Ferguson

Larry D. Ferguson 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).

  • Keyhole and room illuminating apparatus
    Patent number: 4779171
    Abstract: A keyhole and room illuminating apparatus which is characterized by a split housing having side and bottom openings and bulbs positioned inside the housing at the openings, with electrical connectors and batteries disposed inside the housing for operating the bulbs by manipulating a switch located in the housing. The keyhole and room illuminating apparatus is designed to illuminate the keyhole provided in the door lockset, as well as the room into which the door is opened.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: October 18, 1988
    Inventor: Larry D. Ferguson