Pedido de patente depositado
#2.1
07/25/1989
RPI 979
The letters patent expired on 11/20/2001: 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
NGK Spark Plug CO LTD
JP
Inventors
T. O. (pessoa física)
JP
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/25/1989
RPI 979
#21.1
Patente extinta em 23/05/1999 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
11/20/2001
RPI 1611
#16.1
07/25/1995
RPI 1286
#13.1
03/07/1995
RPI 1266
#9.1
11/01/1994
RPI 1248
#4.1
06/29/1993
RPI 1178
#3.1
04/16/1991
RPI 1063
From the same holder
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