Solicitação de exame técnico
#4.1
10/24/1989
RPI 992
Application data
Number
PI8705037Type
Filing
Publication
The letters patent expired on 12/11/2012: 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: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants
Instituto Nacional de Tecnologia
RJ, BR
Inventors
B. R. (pessoa física)
BR
E. S. (pessoa física)
BR
T. N. (pessoa física)
BR
V. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/24/1989
RPI 992
#3.2
09/13/1988
RPI 934
#2.1
12/22/1987
RPI 896
#21.1
Patente extinta em 14/12/2009
12/11/2012
RPI 2188
#16.1
12/14/1999
RPI 1510
#9.1
07/13/1999
RPI 1488
#6.1
09/22/1998
RPI 1448
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Same category
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