Solicitação de exame técnico
#4.1
07/04/1989
RPI 976
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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Acumuladores Narvit Ltda
SP, BR
Inventors
O. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/04/1989
RPI 976
#3.1
02/08/1989
RPI 955
#2.1
12/08/1987
RPI 894
#21.1
Patente extinta em 28/07/97 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
09/24/1991
RPI 1086
#15.11
07/02/1991
RPI 1074
#13.1
05/14/1991
RPI 1067
#9.1
01/22/1991
RPI 1051
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