Loose-leaf binder container for

Claim 1

IN COMBINATION WITH A LOOSELEAF NOTEBOOK HAVING A PAIR OF COVERS HINGED TO OPPOSITE EDGES OF A BACK, BINDER RINGS SECURED TO SAID BACK, AN ARTICLE HOLDER COMPRISING A RELATIVELY THIN SHEET OF MODERATELY RIGID MATERIAL OF SUBSTANTIALLY THE SAME DIMENSIONS AS SAID COVERS AND HAVING A BASE PANEL PORTION LYING IN A SINGLE PLANE, SAID SHEET HAVING UNDULATING FORMATIONS EXTENDING AWAY FROM SAID PLANE TO PROVIDE ARTICLE RECEIVING DEPRESSIONS, SAID PANEL PORTION HAVING PERFORATIONS ALONG ONE EDGE ENGAGED BY SAID RINGS OF THE NOTEBOOK, THE DEPRESSION PORTIONS CLOSEST TO THE PANEL EDGE BEARING SAID PERFORATIONS BEING SUBSTANTIALLY DEEPER THAN THE DEPRESSIONS REMOTE FROM SAID EDGE WHEREBY THE HOLDER IS SUBSTANTIALLY WEDGE-SHAPED AS VIEWED FROM THE END THEREOF, AND A FLAT STIFF PANEL LIKEWISE HAVING PERFORATIONS ALONG ONE EDGE ENGAGED BY SAID RINGS OF SAID NOTEBOOK AT THE OPEN SIDE OF SAID DEPRESSIONS AND HAVING SUBSTANTIALLY THE SAME DIMENSIONS AS SAID SHEET TO FORM A COVER MEMBER FOR SAID ARTICLE HOLDER AND A WRITING SURFACE FOR PAGES OF SAID NOTEBOOK.