Solicitação de exame técnico
#4.1
09/19/1989
RPI 987
The letters patent expired on 09/25/2001: 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: 09/19/1989. We update with every new RPI gazette, published weekly.
Applicants
Tecnitubo Indústria e Comércio de Tubos Ltda
RS, BR
Inventors
R. G. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/19/1989
RPI 987
#2.1
02/14/1989
RPI 956
#3.2
02/14/1989
RPI 956
#21.1
Patente extinta em 30/06/98 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
03/30/1993
RPI 1165
#13.1
09/22/1992
RPI 1138
#9.1
05/05/1992
RPI 1118
Same category
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