Solicitação de exame técnico
#4.1
09/13/1988
RPI 934
Application data
Number
PI8605168Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.
Applicants
Nippon Soda Co., Ltd
JP
Inventors
H. Y. (pessoa física)
JP
H. N. (pessoa física)
JP
T. S. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/13/1988
RPI 934
#3.1
05/31/1988
RPI 919
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04/07/1987
RPI 859
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Patente extinta em 23/10/2001
07/22/2008
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#16.1
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RPI 1317
#13.1
11/28/1995
RPI 1304
#9.1
07/18/1995
RPI 1285
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10/11/1994
RPI 1245
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09/14/1993
RPI 1189
#6.1
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RPI 1159
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12/10/1991
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