Concessão da patente
#16.1
09/27/1983
RPI 675
The letters patent expired on 07/26/1994: 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: 09/27/1983. We update with every new RPI gazette, published weekly.
Applicants
SUMITOMO CHEMICAL CO
Inventors
F. Y. (pessoa física)
K. M. (pessoa física)
S. H. (pessoa física)
S. A. (pessoa física)
W. K. (pessoa física)
Y. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1983
RPI 675
#13.1
08/02/1983
RPI 667
#9.1
03/22/1983
RPI 648
06/22/1982
RPI 609
#4.1
12/22/1981
RPI 583
#21.1
07/26/1994
RPI 1234
From the same holder
Same category
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