Carta-patente expirada
#21.1
Patente extinta em 01/06/2009
05/21/2013
RPI 2211
Application data
Number
PI8907894Type
Filing
Publication
PCT
JP1989000551 The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
Shinagawa Refractories Co., Ltd.
JP
Inventors
K. Y. (pessoa física)
JP
M. O. (pessoa física)
JP
T. T. (pessoa física)
JP
T. O. (pessoa física)
JP
Y. S. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 01/06/2009
05/21/2013
RPI 2211
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08/26/1997
RPI 1395
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03/25/1997
RPI 1373
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07/23/1996
RPI 1338
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06/15/1993
RPI 1176
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04/28/1992
RPI 1117
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