Solicitação de exame técnico
#4.1
06/16/1987
RPI 869
Application data
Number
PI8601386Type
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: 06/16/1987. We update with every new RPI gazette, published weekly.
Applicants
NGK Insulators, Ltd.
JP
Inventors
H. M. (pessoa física)
JP
I. Y. (pessoa física)
JP
N. T. (pessoa física)
JP
Y. N. (pessoa física)
JP
IPC Classification
Priority claims
JP
47865/85 · 03/30/1985
JP
49057/85 · 04/01/1985
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