20.7
10/17/1989
RPI 991
The letters patent expired on 07/13/1993: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
SHIONOGI & CO
Inventors
I. T. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/17/1989
RPI 991
#16.1
03/29/1983
RPI 649
#13.1
01/11/1983
RPI 638
#9.1
08/24/1982
RPI 618
#6.1
03/02/1982
RPI 593
#21.1
07/13/1993
RPI 1180
From the same holder
Same category
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