Razor blade and method of manufacture

Details Razor blade and method of manufacture Razor blade and method of manufacture

2005-10-25

2005-10-25

Payer, Hwei-Siu (Department: 3724)

Metal tools and implements, making

Blank or process

Cutlery

C030S346550, C030S346610

Reexamination Certificate

active

06957598

ABSTRACT:
An elongated stock material for use in manufacturing shaving razor blades, the material including an elongated, flat strip of metal having a front edge and back edge extending along its length, a sharpened cutting edge portion extending along the front edge, a weakened portion between the front edge and the back edge, a blade portion between the cutting edge portion and the weakened portion, and a removable portion between the weakened portion and the back edge. Also disclosed are blades and cartridges made from the material, and methods and apparatus making and using the material.

REFERENCES:
patent: 1734554 (1929-11-01), Behrman
patent: 2275517 (1942-03-01), Fay
patent: 2593307 (1952-04-01), Jacobsen
patent: 3600804 (1971-08-01), Brown
patent: 5458025 (1995-10-01), Neamtu
patent: 5661907 (1997-09-01), Apprille, Jr.
patent: 5701788 (1997-12-01), Wilson et al.
patent: 6629475 (2003-10-01), Neamtu et al.
patent: 548647 (1942-10-01), None
patent: WO 98/05478 (1998-02-01), None

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