Deferimento
#9.1
11/14/1989
RPI 995
Application data
Number
PI8304574Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS
MG, BR
Inventors
C. B. (pessoa física)
BR
E. S. (pessoa física)
BR
M. P. (pessoa física)
BR
S. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
11/14/1989
RPI 995
#6.1
06/20/1989
RPI 974
#15.6
10/25/1988
RPI 940
#15.3
10/06/1987
RPI 885
#4.1
02/24/1987
RPI 853
#3.1
04/02/1985
RPI 754
#2.1
11/01/1983
RPI 680
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B21B 37/08.
03/20/2018
RPI 2463
#21.1
Patente extinta em 24/08/98
07/01/2008
RPI 1956
#16.1
08/28/1990
RPI 1030
#13.1
03/20/1990
RPI 1010
From the same holder
Same category
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