Solicitação de exame técnico
#4.1
07/05/1988
RPI 924
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: 07/05/1988. We update with every new RPI gazette, published weekly.
Applicants
T. N. (pessoa física)
SP, BR
Inventors
T. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/05/1988
RPI 924
#3.2
05/10/1988
RPI 916
#2.1
05/03/1988
RPI 915
#21.1
Patente extinta em 19/01/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
10/26/1993
RPI 1195
#13.1
06/15/1993
RPI 1176
#9.1
03/02/1993
RPI 1161
#6.1
06/23/1992
RPI 1125
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Same category
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