Concessão da patente
#16.1
12/31/1985
RPI 793
The letters patent expired on 05/03/1994: 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: 12/31/1985. We update with every new RPI gazette, published weekly.
Applicants
SUMITOMO CHEMICAL CO
Inventors
A. K. (pessoa física)
K. T. (pessoa física)
N. I. (pessoa física)
O. N. (pessoa física)
S. Y. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/31/1985
RPI 793
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
#15.11
06/18/1985
RPI 765
11/10/1981
RPI 577
#21.1
05/03/1994
RPI 1222
From the same holder
Same category
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