Razor blade technology

  • US 6,684,513 B1
  • Filed: 02/29/2000
  • Issued: 02/03/2004
  • Est. Priority Date: 02/29/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A razor blade comprising a substrate with a cutting edge defined by a sharpened tip and adjacent facets,a layer of hard coating on said cutting edge, said hard coating being made of amorphous material containing carbon, an overcoat layer of a chromium containing material on said layer of hard coating, and an outer layer of polytetrafluoroethylene coating over said overcoat layer.

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