Solicitação de exame técnico
#4.1
07/04/1989
RPI 976
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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Weril Instrumentos Musicais Ltda
SP, BR
Inventors
R. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/04/1989
RPI 976
#3.2
02/08/1989
RPI 955
#2.1
01/31/1989
RPI 954
#21.1
Patente extinta em 25/10/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
07/27/1993
RPI 1182
#13.1
04/20/1993
RPI 1168
#9.1
12/01/1992
RPI 1148
#6.1
03/10/1992
RPI 1110
From the same holder
Same category
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