Patents by Inventor Stephen W. Campbell

Stephen W. Campbell 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).

  • Electric storage battery
    Patent number: 4374188
    Abstract: A container element (11) for an electric storage battery includes a pair of carrying handles (15) extending between respective pairs of spaced holes formed in projecting lugs (13) on the container element (11). Each handle (15) includes at least one strip of rope (16) or similar flexible material passing through the associated pair of holes and joined at the ends to define a continuous loop.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: February 15, 1983
    Assignee: Lucas Industries Limited
    Inventors: Stephen W. Campbell, Eric E. Cragg, Michael J. Elwell, Raymond A. Johnson
  • Electrical storage battery
    Patent number: D266757
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: November 2, 1982
    Assignee: Lucas Industries Limited
    Inventors: Stephen W. Campbell, Eric E. Cragg, Michael J. Elwell, Raymond A. Johnson