Concessão da patente
#16.1
08/28/1984
RPI 723
The patent was granted on 08/28/1984 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: 08/28/1984. We update with every new RPI gazette, published weekly.
Applicants
NIPPON ESTER CO LTD
Inventors
F. Y. (pessoa física)
H. K. (pessoa física)
I. F. (pessoa física)
S. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/28/1984
RPI 723
#13.1
05/15/1984
RPI 708
#9.1
01/31/1984
RPI 693
#4.1
05/17/1983
RPI 656
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08G 63/22; C08G 63/18; D01F 6/62.
03/27/2018
RPI 2464
#18.2
01/28/1992
RPI 1104
Same category
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