Patents by Inventor David H. Caldwell

David H. Caldwell 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 package
    Patent number: 4441650
    Abstract: A paperboard container for a pair of electric incandescent lamps which is in the form of a parellelepiped and includes as part thereof or secured thereto first and second pairs of lamp-engaging tab members which extend inwardly of the parrellelepiped to positively engage a respective one of the electric lamps at spaced locations thereon and cause the lamps to be in physical contact when positioned within the container. The container is formed from a single sheet of material through a series of folding and bending operations to thus provide an inexpensive and compact finished product.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: April 10, 1984
    Assignee: GTE Products Corporation
    Inventors: David H. Caldwell, Robert M. Hurley
  • Lamp bulb packaging container
    Patent number: D279655
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: July 16, 1985
    Assignee: GTE Products Corporation
    Inventors: David H. Caldwell, Robert M. Hurley
  • Dual lamp bulb package
    Patent number: D283309
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: April 8, 1986
    Assignee: GTE Products Corporation
    Inventors: David H. Caldwell, Robert M. Hurley, Dan E. Picini
  • Multiple lamp bulb package
    Patent number: D300906
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: May 2, 1989
    Assignee: GTE Products Corporation
    Inventors: David H. Caldwell, Dan E. Picini