Patent · US Expired

Optical construction toy

US5030158A · kind A · utility

14Cited by
5References
10Claims
0Family size

Inventors

Key dates

Filing dateFeb 6, 1990
Grant dateJul 9, 1991
Priority date
Expiry dateFeb 6, 2010

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA63H33/042
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

An optical construction toy assembly including modular optical apparatus having optical power and construction apparatus for permitting selectable arrangement of the modular optical apparatus having optical power to selectably define a plurality of different optical devices.

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