Patents by Inventor John D. Boykin

John D. Boykin 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).

  • Pierced earring with liquid visible therein
    Patent number: 4148199
    Abstract: An earring has two transparent enclosures, each shaped as half a dog bone. Each of the enclosures has a cavity with a colored liquid therein. Caps at the open ends of the enclosures seal the liquids therein. A shank extending from one of the caps has an internally threaded axial bore formed therein and threadedly coupleable with an externally threaded shank extending from the other cap so that the earring is securable to a pierced ear.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: April 10, 1979
    Inventor: John D. Boykin