Solicitação de exame técnico
#4.1
10/17/1989
RPI 991
Application data
Number
PI8804153Type
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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Companhia Siderúrgica de Tubarão - Grupo Siderbrás
ES, BR
Inventors
O. M. (pessoa física)
BR
R. T. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/17/1989
RPI 991
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01/03/1989
RPI 950
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12/27/1988
RPI 949
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Patente extinta em 17/08/2003
09/02/2008
RPI 1965
#16.1
11/26/1996
RPI 1356
#13.1
07/09/1996
RPI 1336
#9.1
01/30/1996
RPI 1313
08/02/1994
RPI 1235
#15.3
06/07/1994
RPI 1227
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