Pedido de patente depositado
#2.1
09/26/1989
RPI 988
Application data
Number
PI8804217Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Aço Minas Gerais S/A - Açominas
MG, BR
Gerdau Açominas S/A
MG, BR
Inventors
E. R. (pessoa física)
BR
E. M. (pessoa física)
BR
M. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
09/26/1989
RPI 988
#2.1
01/17/1989
RPI 952
#21.1
Patente extinta em 11/08/2003
09/02/2008
RPI 1965
#25.4
Alterado de: Aço Minas Gerais S/A - Açominas
11/22/2005
RPI 1820
#16.1
11/26/1996
RPI 1356
#13.1
07/02/1996
RPI 1335
#9.1
01/09/1996
RPI 1310
#4.1
04/14/1992
RPI 1115
#3.1
03/27/1990
RPI 1011
From the same holder
Same category
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