Patent attributes
The present disclosure provides a protective case, which includes a main frame unit. The main frame unit includes an inner ring surface and an outer ring surface. The main frame unit has two first side portions, two second side portions and four round corner portions. The inner ring surface has a recess recessed toward the outer ring surface. The recess has at least one second groove region formed in one of the first side portions, the second side portions and the round corner portions, and at least one flat region connected to the second groove region. The second groove region is adjacent to a bottom surface and recessed toward the bottom surface. The flat region is configured in the main frame unit so as to facilitate demolding when the main frame unit is fabricated.
