Carta-patente expirada
#21.1
Patente extinta em 19/02/2010
05/21/2013
RPI 2211
Application data
Number
PI9000752Type
Filing
Publication
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas (Grupo Siderbrás)
MG, BR
Inventors
B. T. (pessoa física)
BR
E. A. (pessoa física)
BR
G. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 19/02/2010
05/21/2013
RPI 2211
#16.1
06/24/1997
RPI 1386
#9.1
08/06/1996
RPI 1340
#4.1
03/17/1992
RPI 1111
#3.1
10/15/1991
RPI 1089
#2.1
03/19/1991
RPI 1059
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