Patents Assigned to Productive Environments, Inc
  • Folder binder
    Patent number: 6196748
    Abstract: What is provided is a folio having at least one set of interleaved attachment tabs hingedly formed at the folio spine, comprising a first tab and a second nested tab, where both tabs share the same spine axis, and where each tab provides a means for attaching a leaf thereto, whether by providing a surface for fixedly attaching a leaf to or by providing a structural support for attaching a leaf thereto.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: March 6, 2001
    Assignee: Productive Environments, Inc
    Inventor: David C. Schwartz