Patent · US Expired

Puzzle key holder

US4581910A · kind A · utility

8Cited by
11References
4Claims
0Family size

Inventors

Key dates

Filing dateMar 5, 1984
Grant dateApr 15, 1986
Priority date
Expiry dateMar 5, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T70/8703
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A puzzle key holder for use with two key rings. The holder includes a main body and an auxiliary body, each of which receives a key ring. Complementary sockets and pins are formed in the abutting edges of the bodies to normally retain such bodies as an integral member. The bodies are relatively moveable relative to one another so as to become disengaged from one another. Such disengagement can only be effected by person's having knowledge of the relative motions necessary to effect such disengagement.

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