Solicitação de exame técnico
#4.1
06/23/1987
RPI 870
Application data
Number
PI8504544Type
Filing
Publication
The patent was granted on 05/28/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 06/23/1987. We update with every new RPI gazette, published weekly.
Applicants
Dowa Iron Powder Co., Ltd.
JP
Inventors
F. O. (pessoa física)
JP
M. W. (pessoa física)
JP
S. O. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/23/1987
RPI 870
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04/22/1987
RPI 861
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