Dual-function looseleaf binder sheets

A looseleaf binder sheet for mounting in looseleaf binders incorporating binder means, with each looseleaf binder sheet capable of being securely maintained in locked engagement with the binder means as well as easily removed therefrom when desired without tearing or ripping the sheet and without opening of the binder means, each looseleaf binder sheet comprising:

• A. a binder-engaging section incorporating
• (1) at least two layers formed therealong each layer having a coinciding free, exposed edge, and
• (2) a plurality of binder-receiving holes
• (a) positioned along the binder engaging section inwardly spaced from the free, exposed edge thereof in substantial alignment, and
• (b) formed through the plurality of layers;
• B. a set of cooperating, juxtaposed, overlapping oppositely extending binder-locking fingers each having its terminating end defined by a slit in the binder-engaging section extending between the free, exposed edge thereof and each binder-receiving hole;
• and
• C. each of said sets of binder-locking fingers comprising a single binder-locking finger in each of the layers, and the finger-end-defining slit in each of said layers being non-coincidingly offset from the finger-end-defining slit in the adjacent layer
• whereby the plurality of sets of binder-locking fingers securely maintain the looseleaf binder sheet engaged with the binder means in response to forces acting in the plane of the looseleaf binder sheet, while allowing the looseleaf binder sheet to be quickly and easily removed from engagement with the binder means in response to forces acting substantially perpendicular to the plane of the looseleaf binder sheet, or at an acute angle thereto, by the flexible, spreading disengagement of the binder-locking fingers in response to said force.