Pedido de patente depositado
#2.1
05/23/1989
RPI 970
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: 05/23/1989. We update with every new RPI gazette, published weekly.
Applicants
NGK Spark Plug CO Ltd
JP
Inventors
O. K. (pessoa física)
JP
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
05/23/1989
RPI 970
#21.1
Patente extinta em 04/10/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
08/30/1994
RPI 1239
#13.1
03/22/1994
RPI 1216
#9.1
11/16/1993
RPI 1198
#4.1
06/16/1992
RPI 1124
#3.1
06/05/1990
RPI 1021
From the same holder
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