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US 7,644,857 B2Granted
Expandable file folder with separate cases
AssigneeJames C. Huang
InventorChih-Ying Chou
Life of this patent
Estimating the term…
Abstract
The present invention provides an expandable file folder with separate cases, which has a case placed in the middle of the folder, and which, as a result, has little steadiness and tends to fall down. The first and second cases between the front and rear sides of the expandable storing part are set such that the file holder can be more steady in a standing position. Two separated supporting areas form beneath the two cases. Thus the folder, when placed, will not tend to fall down.
Claims7
An expandable file folder apparatus comprising:
- a rigid first case having a front wall and a back wall, said first case having side walls connected to said front wall and said back wall, said first case having a bottom wall extending between said front and back walls, said front wall and said back wall and said side walls and said bottom wall being of a non-foldable solid planar material;
- a rigid second case having a front wall and a back wall with side walls connecting said front and back walls, said second case having a bottom wall extending between said front and back walls, said front wall and said back wall and said side walls and said bottom wall of said second case being of a non-foldable solid planar material;
- an expandable storing section positioned between said back wall of said first case and said front wall of said second case, said storing section having wrinkled walls on opposite sides thereof, said storing section having a bottom wall at a bottom thereof, said storing section having several dividing sheets positioned above said bottom wall and between said wrinkled walls, said storing section being lengthenable relative to said distance between said first and second cases.
Dependencies are inferred from the claim text.