Solicitação de exame técnico
#4.1
10/17/1989
RPI 991
Application data
Number
PI8506009Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
NGK Insulators, Ltd.
JP
Inventors
A. K. (pessoa física)
JP
S. S. (pessoa física)
JP
T. T. (pessoa física)
JP
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10/17/1989
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