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US 5,393,155 AGranted
Ring binder housing
AssigneeWorld Wide Stationery Mfg. Co., Ltd.
InventorWeng I. Ng
Life of this patent
Estimating the term…
Abstract
A plate for forming a housing member for a ring binder which is provided with at least one rib positioned longitudinally on the plate along each side thereof, wherein said ribs are provided along the substantial length of each side of the housing member plate.
Claims5
A housing member for a ring binder comprising:
- a generally rectangular body;
- two longitudinal sides normal to the body, each of the longitudinal sides having an outer edge;
- and
- at least one rib extending outwardly from the longitudinal sides positioned longitudinally adjacent each of the outer edges.
1 more element
Dependencies are inferred from the claim text.