Patent · US Expired

Block

US6343937B1 · kind B1 · utility

8Cited by
8References
9Claims
0Family size

Inventor

Key dates

Filing dateJan 28, 2000
Grant dateFeb 5, 2002
Priority date
Expiry dateJan 28, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09B23/26
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A block includes a hole provided on one side of the block, two fifths of the length of the block from one end, and a pin provided on the opposite side of the block two fifths of the length of the block from the other end. The hole is arranged to be connected to the pin of a like underlying or overlying block, so that a plurality of said blocks can be connected to form a double helix. Each end of the block includes a knob for connecting a plurality of blocks to a flexible member which follows a double helix shape to produce a model for DNA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.