06/11/2013
RPI 2214
Carta-patente expirada
21.1
Patente extinta em 04/10/2011
Invention PatentPI9104303
Elkem a/s
The letters patent expired on 06/11/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 06/11/2013. We update with every new RPI gazette, published weekly.
Publications in the Brazilian Industrial Property Gazette (RPI).
06/11/2013
RPI 2214
21.1
Patente extinta em 04/10/2011
11/16/1999
RPI 1506
16.1
06/01/1999
RPI 1482
15.11
Alterada de Int. Cl 6 C08J 7/04
06/01/1999
RPI 1482
9.1
11/17/1992
RPI 1146
4.1
06/09/1992
RPI 1123
3.1
11/12/1991
RPI 1093
2.1
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