Patent ID: 7568415

Claim:
A mat cutting apparatus comprising: a cutting device having a rectangular blade holder for sliding on flat surfaces with a blade parallel to a length of said rectangular blade holder and perpendicular to a width of said rectangular blade holder; a top frame, said top frame comprising a plurality of notches cut into an inner perimeter of said top frame, said notches having a width and a depth, said width being sized slightly larger than the width of said rectangular blade holder of said cutting device such that the cutting device is able to enter said notches in order to make a long cut that is longer than if the cutting device had not entered said notches and, instead, had stopped at the inner perimeter thereby making a short cut; a mat holder comprising a peripheral border having a plurality of finger notches and corner cut-out notches; a protective mat board; a base; a plurality of narrow cutter guides machined to a length that is slightly less than the distance between two parallel edges of said inner perimeter of said top frame, and machined to a width that is equal to a distance between a corner of said inner perimeter of said top frame and a nearest edge of said notches thereby permitting the length of said rectangular blade holder of said cutting device to slide along the length of said narrow cutter guide and the width of said rectangular blade holder of said cutting device to slide into said notches of said top frame thereby making the long cut; and a plurality of wide cutter guides machined to a length that is slightly less than the distance between two parallel edges of said inner perimeter of said top frame, and machined to a width that is larger than the distance between the corner of said inner perimeter of said top frame and the nearest edge of said notches thereby permitting the length of said rectangular blade holder of said cutting device to slide along the length of said wide cutter guide but restricting the width of said rectangular blade holder of said cutting device from entering into said notches of said top frame thereby making the short cut.