Publicação do pedido de patente
#3.1
07/11/1989
RPI 977
Application data
Number
PI8706877Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 07/11/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
C. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
07/11/1989
RPI 977
#2.1
01/31/1989
RPI 954
#21.1
Patente extinta em 17/12/2002
07/29/2008
RPI 1960
#16.1
06/28/1994
RPI 1230
#13.1
03/08/1994
RPI 1214
#9.1
09/28/1993
RPI 1191
#4.1
02/13/1991
RPI 1054
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Same category
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