US 10,578,142 B2Granted

Corrugated fiberboard constructions

OwnerZachary Rotholzinventor

Life of this patent

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Abstract

Among other things, a piece of furniture is formed from three separate precut pieces of flat cardboard. A first one of the pieces has a bottom edge to rest on a floor with the first piece rising vertically from the bottom edge and has at least one slot at an upper edge of the first piece. A second one of the pieces has a bottom edge to rest on the floor with the second piece rising from the bottom edge and having at least one slot at an upper edge of the second piece. A third one of the pieces has a crease across the piece and at least two slots along at least one edge that is parallel to the fold. The piece of furniture is formed by mating the one slot in the first piece with one of the slots of the third piece, folding the third piece of cardboard at the crease, and mating the one slot in the second piece with another one of the slots of the third piece, with the third piece folded along the crease.

Claims14

Dependent claims

An apparatus comprising

three separate pieces of cut flat cardboard,
a first one of the pieces having a bottom edge to be supported from a floor, the first piece rising from the bottom edge and having at least one slot at an upper edge of the first piece,
a second one of the pieces having a bottom edge to be supported from the floor, the second piece rising from the bottom edge and having at least one slot at an upper edge of the second piece,
a third one of the pieces having outer edges that define a continuous closed boundary perimeter of the piece, a crease across the piece, at least two slots along at least one of the outer edges that does not intersect the crease, and a third slot along another one of the outer edges that also does not intersect the crease,
the one slot in the first piece to mate with one of the two slots along the one of the outer edges of the third piece, and the one slot in the second piece to mate with the other one of the two slots along the one of the outer edges of the third piece,
the third slot of the third piece mating with the one slot of the first piece or the one slot of the second piece,
to form, with the third piece folded along the crease, a piece of furniture in which the first and second pieces serve as legs and the third piece as a surface supported by the legs.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/443,505Filed 27 Feb 2017 · continuation
Priority: 23 Jun 2011
Published: US 2017/0234347 A117 Aug 2017
Granted: 3 Mar 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

F16B 12/46
Leg joints; Corner joints: non-metal corner connections
A47B 3/06
Folding or stowable tables: with separable parts
A47C 4/02
Foldable, collapsible or dismountable chairs: dismountable chairs
A47C 4/021
Dismountable chairs: connected by slotted joints

Family

Application61/500,369Us provisional application · filed 23 Jun 2011
Application13/530,349Parent of this continuation · filed 22 Jun 2012
US 2017/0234347 A1Pre-grant publication · published 17 Aug 2017
US 9,585,482 B2Parent of this continuation
US 2013/0080286 A1Published application
US 10,578,142 B2This patent

From the US filing history. Foreign family members aren’t listed.