Patent · US Expired

Smoke detector

US4471346A · kind A · utility

16Cited by
10References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 2, 1981
Grant dateSep 11, 1984
Priority date—
Expiry dateJun 2, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08B17/113
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A portable, battery powered smoke detector in which the operative components are compactly and efficiently arranged in such a manner that they may be housed in a pocket-sized casing approximating the shape and size of a cigarette package. A further embodiment shows an efficiently organized arrangement of the smoke detector components in a telephone set.

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