Pedido de patente depositado
#2.1
09/12/1989
RPI 986
Application data
Number
PI8803707Type
Filing
Publication
The letters patent expired on 12/11/2012: 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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A-Usiminas
MG, BR
Inventors
B. T. (pessoa física)
BR
R. S. (pessoa física)
BR
Y. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
09/12/1989
RPI 986
#2.1
12/27/1988
RPI 949
#21.1
Patente extinta em 22/08/2010
12/11/2012
RPI 2188
#16.1
08/22/2000
RPI 1546
#9.1
03/31/1998
RPI 1423
#6.1
11/19/1996
RPI 1355
#7.1
02/07/1995
RPI 1262
#4.1
04/23/1991
RPI 1064
#4.1
04/24/1990
RPI 1015
#3.1
03/06/1990
RPI 1008
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Same category
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