Key blank and key
US7412860B1 · kind B1 · utility
5Cited by
33References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8595
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A key blank or key has a rectangular parallel metal shaped blade which has side edges formed with grooves for cooperating with a complementary shaped keyway; the sides of the blank having a portion grooved for registration, another portion grooved for top-level hierarchical master keying, and two other portions, one on each side of the blade, for further master key variations and different combinations. One of the two further sections being curvilinear and the other rectangular or angular cuts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.