Solicitação de exame técnico
#4.1
09/27/1988
RPI 936
The letters patent expired on 09/18/2001: 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: 09/27/1988. We update with every new RPI gazette, published weekly.
Applicants
Barweel do Brasil Equipamentos para Borracha Ltda
SP, BR
Inventors
M. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/27/1988
RPI 936
#3.2
07/26/1988
RPI 927
#2.1
04/19/1988
RPI 913
#21.1
Patente extinta em 21/12/97 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
07/27/1993
RPI 1182
#13.1
04/20/1993
RPI 1168
#9.1
12/01/1992
RPI 1148
#6.1
05/12/1992
RPI 1119
Same category
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