Concessão da patente
#16.1
04/25/1989
RPI 966
The letters patent expired on 05/09/1995: 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: 04/25/1989. We update with every new RPI gazette, published weekly.
Applicants
KUREHA CHEMICAL IND CO LTD
Inventors
O. M. (pessoa física)
S. K. (pessoa física)
Y. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/25/1989
RPI 966
#13.1
12/27/1988
RPI 949
#9.1
09/06/1988
RPI 933
#7.1
10/18/1983
RPI 678
#4.1
09/14/1982
RPI 621
#21.1
05/09/1995
RPI 1275
From the same holder
Same category
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