Level
US6988320B2 · kind B2 · utility
17Cited by
23References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Feb 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.