15.17
05/02/1989
RPI 967
Application data
Number
PI8405781Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 05/02/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderurgicas de Minas Gerais S/A - Usiminas (Grupo Siderbras)
MG, BR
Inventors
K. M. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/02/1989
RPI 967
#15.3
01/10/1989
RPI 951
#4.1
03/29/1988
RPI 910
#15.6
01/12/1988
RPI 899
#15.3
09/22/1987
RPI 883
#3.1
06/17/1986
RPI 817
#2.1
01/29/1985
RPI 745
#15.11
01/12/2010
RPI 2036
#21.1
Patente extinta em 13/11/99
07/08/2008
RPI 1957
#22.1
08/08/1995
RPI 1288
#22.1
08/31/1993
RPI 1187
#16.1
03/26/1991
RPI 1060
#13.1
12/11/1990
RPI 1045
#9.1
08/28/1990
RPI 1030
#6.1
03/13/1990
RPI 1009
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