Patents by Inventor Barry Bolt

Barry Bolt 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).

  • Lamp having screw base
    Patent number: 4020382
    Abstract: A glass screw base of a bulb is provided with a first channel for accomodating solder filling used for mechanical locking of the glass base to a metal screw shell. A second, narrow channel is made in the base to receive a lead wire and direct it to the rim of the shell whereupon an electrical contact is established by a minimal amount of solder and solder flux.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: April 26, 1977
    Assignee: North American Philips Corporation
    Inventors: Barry Bolt, Petrus Peters