Patent · US Expired

Level

US6988320B2 · kind B2 · utility

17Cited by
23References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 28, 2003
Grant dateJan 24, 2006
Priority date
Expiry dateFeb 28, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01C9/26
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A water or spirit level is composed of an elongated body, preferably of metal, at least one bubble mounted in the elongated body, and end caps, preferably of plastics material, at the end faces of the elongated body, wherein at least one outer surface of the elongated body constitutes a preferred measuring surface. At least one of the end caps is releasably connected to the level body such that the end cap can optionally be removed and once again replaced.

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