Patents by Inventor Woodrow Spear

Woodrow Spear 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).

  • Overlay code selection system
    Patent number: 4492487
    Abstract: Coded data imprinted in close spaced relation on data sheets retained within a loose leaf binder is selectively marked through cutout openings in a transparent overlay mask. The mask is positioned in proper alignment over each of the data sheets by means of aligning slots through which at least two of the binder rings project.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: January 8, 1985
    Inventor: Woodrow Spear