Solicitação de exame técnico
#4.1
09/20/1988
RPI 935
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: 09/20/1988. We update with every new RPI gazette, published weekly.
Applicants
D. N. (pessoa física)
SP, BR
Inventors
D. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/20/1988
RPI 935
#2.1
06/07/1988
RPI 920
#3.2
06/07/1988
RPI 920
#21.1
Patente extinta em 18/02/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
12/29/1992
RPI 1152
#13.1
10/20/1992
RPI 1142
#9.1
05/26/1992
RPI 1121
#6.1
10/29/1991
RPI 1091
#6.1
06/18/1991
RPI 1072
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Same category
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