The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
May. 26, 2009
Applicants:
Krassimir Grigorov Marchev, Sudbury, MA (US);
John Madeira, Assonet, MA (US);
Inventors:
Krassimir Grigorov Marchev, Sudbury, MA (US);
John Madeira, Assonet, MA (US);
Assignee:
The Gillette Company, Boston, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
B26B 21/56 (2006.01); B26B 21/58 (2006.01); B21K 11/00 (2006.01); C23C 8/38 (2006.01); B26B 21/60 (2006.01);
U.S. Cl.
CPC ...
C23C 8/38 (2013.01); B26B 21/58 (2013.01); B26B 21/60 (2013.01);
Abstract
A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of a compound layer.