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US 4,047,309 AGranted
Information demonstration device
OwnerPatricia Diane Roykoinventor
Life of this patent
Estimating the term…
Abstract
A portable device for demonstrating information including a receptacle with bottom and side walls. A lid is pivotably mounted on a side wall of the receptacle and a support element is mounted on the opposite edge of the lid. Leaf elements such as felt boards and peg boards are pivotably disposed at the intersection of the lid and support element.
Claims12
A portable device for demonstrating information, comprising:
- a. a receptacle structure comprising a bottom and side walls;
- b. a lid element pivotably mounted at a first edge, thereof on a first side wall of said receptacle structure;
- c. a support element pivotably mounted at an edge thereof on an opposite second edge of said lid element;
- d. said receptacle structure comprising means for engaging a second opposite edge portion of said support element;
- e. plural retractable legs attached to said receptacle structure;
- and at least one leaf element pivotably disposed at an edge portion thereof at said second edge of said lid element.
3 more elements
Dependencies are inferred from the claim text.