Concessão da patente
#16.1
10/01/1985
RPI 780
The letters patent expired on 09/26/1995: 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: 10/01/1985. We update with every new RPI gazette, published weekly.
Applicants
Ihaara Chemical Industry Co., Ltd.
JP
Inventors
K. H. (pessoa física)
M. S. (pessoa física)
N. T. (pessoa física)
S. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/01/1985
RPI 780
#9.1
04/16/1985
RPI 756
#6.1
01/31/1984
RPI 693
#4.1
06/07/1983
RPI 659
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C01B 31/26.
03/27/2018
RPI 2464
#21.1
09/26/1995
RPI 1295
Same category
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