Patent ID: 8795580

Claim:
A method of thermoforming a tamper-resistant/evident container comprising: a) providing a sheet of plastic material that is at least partially transparent; b) forming a cover portion from a portion of the sheet of plastic material, wherein the cover portion includes an outwardly extending peripheral flange; c) forming a base portion from a portion of the sheet including an upper peripheral rim and a skirt depending downwardly therefrom, the upper peripheral rim extending substantially about the perimeter of the container and configured to substantially surround the outwardly extending peripheral flange of the cover portion to hinder access to the container when the container is closed; d) forming a hinge from a portion of the sheet joining the cover portion with the base portion such that the vertical height of the hinge correlates with the height oft the skirt that depends downwardly from the base portion when the height of the skirt is substantially uniform around the perimeter of the container; and e) forming a frangible portion in the hinge, the frangible portion defined by forming at least one line of weakness in the hinge, and wherein the frangible portion is formed in a manner that when the frangible portion is severed, at least one projection is formed extending from at least one of the base portion or cover portion for facilitating removal of the cover portion from the base portion to open the container, and wherein the cover portion, base portion, hinge and frangible portion are unitarily formed from the sheet of plastic material.