Pocket folder and blank for making same

1. A one piece blank for making a folder comprising

at least a pair of rectangular sections;

a first extension extending from a bottom edge of one of said sections for folding over said one section to define an open pocket, said extension having a horizontally disposed score line spaced from a bottom edge of said one section dividing said extension into a trapezoidal section adjacent said one section and a rectangular section and having a rhombic-shaped tab extending outwardly of said trapezoidal section and said rectangular section;

a first flap extending from a side edge of said one section and having a vertically disposed score line intermediately thereof to separate said first flap into a first part contiguous to said one section and a second part for folding flat against said extension;

a second flap extending from said side edge of said one section for folding over said one section to reinforce an edge of said one section; and

a third flap extending from a side edge of the other of said sections for folding over said other section to reinforce said side edge of said other section.

2. A one piece blank as set forth in claim 1 wherein said first flap has a tab extending therefrom and said second flap has a recess receiving said tab in mating relation.

3. A one piece blank as set forth in claim 1 wherein

a second extension extends from a bottom edge of the other of said sections for folding over said other section to define an open pocket, said second extension having a horizontally disposed score line dividing said second extension into a trapezoidal section adjacent said other section and a rectangular section and having a rhombic-shaped tab extending outwardly of said trapezoidal section and said rectangular section; and

a fourth flap extends from a side edge of said other section and has a vertically disposed score line intermediately thereof to separate said fourth flap into a first part contiguous to said other section and a second part for folding flat against said second extension.

4. A one piece blank as set forth in claim 3 wherein said fourth flap has a tab extending therefrom and said third flap has a recess receiving said tab in mating relation.

5. A one piece blank as set forth in claim 1 wherein a second extension extends from a bottom edge of the other of said sections for folding over said other section to define a closed pocket, said second extension having a horizontally disposed score line dividing said second extension into a trapezoidal section adjacent said other section and a rectangular section and having a rhombic-shaped tab extending outwardly of said trapezoidal section and said rectangular section; and a fourth flap extends from said extension for folding relative to said second extension with said second extension folded over said other section, said fourth flap having a vertically disposed score line intermediately thereof to separate said fourth flap into a first part contiguous to said second extension and a second part folded flat against and secured to said other section.

6. A folder comprising

at least a pair of rectangular sections;

a first extension extending from a bottom edge of one of said sections and folded over said one section to define an open pocket, said extension having a horizontally disposed score line spaced from a bottom edge of one section dividing said extension into a trapezoidal section adjacent said one section and a rectangular section and having a rhombic-shaped tab extending outwardly of said trapezoidal section and said rectangular section;

a first flap extending from a side edge of said one section and secured to said extension, said first flap having a vertically disposed score line intermediately thereof to separate said first flap into a first part contiguous to said one section and a second part folded flat against and secured to said first extension;

a second flap extending from said side edge of said one section and folded over said one section to reinforce an edge of said one section; and

a second extension extends from a bottom edge of the other of said sections and folded over said other section to define an open pocket, said second extension having a horizontally disposed score line dividing said second extension into a trapezoidal section adjacent said other section and a rectangular section and having a rhombic-shaped tab extending outwardly of said trapezoidal section and said rectangular section;

a third flap extending from a side edge of said other section and having a vertically disposed score line intermediately thereof to separate said third flap into a first part contiguous to said other section and a second part for folding flat against said second extension; and

a fourth flap extending from a side edge of the other of said sections for folding over said other section to reinforce said side edge of said other section.

7. An open pocket construction comprising

a rectangular section;

a first extension extending from a bottom edge of said section and folded over said section to define an open pocket, said extension having a horizontally disposed score line spaced from said bottom edge of said section and dividing said extension into a trapezoidal section adjacent said rectangular section and a rectangular section to form a front face of the open pocket;

a first flap extending from one side of said section and secured to said extension, said first flap having a vertically disposed score line intermediately thereof to separate said first flap into a first part contiguous to said section and a second part folded flat against and secured to said extension;

a tab extending from one of said trapezoidal section of said first extension and said first part of said first flap to reinforce a corner of said open pocket;

a second flap extending from said one side of said section and folded over said section to reinforce an edge of said section.