Solicitação de exame técnico
#4.1
01/10/1989
RPI 951
Application data
Number
PI8701297Type
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: 01/10/1989. We update with every new RPI gazette, published weekly.
Applicants
Stup - Sociedade Técnica para Utilização da Pré-Tensão (Processos Freyssinet) S/A
RJ, BR
Inventors
C. T. (pessoa física)
MX
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
01/10/1989
RPI 951
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09/27/1988
RPI 936
#2.1
06/30/1987
RPI 871
#21.1
Patente extinta em 23/03/2002
07/29/2008
RPI 1960
09/27/1994
RPI 1243
#16.1
07/30/1991
RPI 1078
#13.1
04/16/1991
RPI 1063
#9.1
01/02/1991
RPI 1048
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Same category
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