20.4
11/21/1989
RPI 996
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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Arcanjo Nigro & Filhos Ltda
Inventors
P. N. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/21/1989
RPI 996
11/21/1989
RPI 996
#16.1
10/25/1988
RPI 940
#9.1
05/24/1988
RPI 918
#15.11
12/22/1987
RPI 896
#6.1
12/15/1987
RPI 895
#4.1
05/06/1986
RPI 811
#3.2
08/27/1985
RPI 775
#2.1
04/30/1985
RPI 758
#21.1
05/09/1995
RPI 1275
From the same holder
Same category
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