Patents by Inventor Terry A. Gray

Terry A. Gray 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).

  • Writing instrument with locking core
    Patent number: 6179502
    Abstract: A writing instrument and a process for manufacturing thereof, a core having a configuration with includes a plurality of channels spaced apart in a radial direction. The channels have sides which form a specific minimum angle at the centerline of each channel. The writing instrument also includes a pair of slats, each having a configuration corresponding to approximately half of the configuration of the core.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: January 30, 2001
    Assignee: Dixon Ticonderoga Company
    Inventor: Terry A. Gray