Razor blade technology
US6684513B1 · kind B1 · utility
107Cited by
25References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of a chromium containing material on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the overcoat layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.