20.4
08/01/1989
RPI 980
Application data
Number
PI8106702Type
Filing
Publication
The letters patent expired on 08/19/2008: 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: 08/01/1989. We update with every new RPI gazette, published weekly.
Applicants
MITSUBISHI CHEM IND [JP]
Inventors
M. C. (pessoa física)
O. Y. (pessoa física)
T. S. (pessoa física)
T. Y. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/01/1989
RPI 980
#16.1
10/01/1985
RPI 780
#13.1
07/30/1985
RPI 771
#9.1
04/09/1985
RPI 755
#6.1
06/12/1984
RPI 712
#4.1
10/19/1982
RPI 626
#3.1
07/06/1982
RPI 611
#2.1
12/01/1981
RPI 580
#21.1
Patente extinta em 19/10/96
08/19/2008
RPI 1963
From the same holder
Same category
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