Solicitação de exame técnico
#4.1
10/04/1988
RPI 937
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: 10/04/1988. We update with every new RPI gazette, published weekly.
Applicants
Tubos e Conexões Tigre Ltda
SC, BR
Inventors
D. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/04/1988
RPI 937
#3.1
08/02/1988
RPI 928
05/24/1988
RPI 918
#2.1
03/31/1987
RPI 858
#21.1
Patente extinta em 29/09/1996
07/01/2008
RPI 1956
#16.1
12/26/1990
RPI 1047
#13.1
09/04/1990
RPI 1031
#9.1
05/29/1990
RPI 1020
#6.1
01/09/1990
RPI 1001
From the same holder
Same category
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