Concessão da patente
#16.1
04/25/1989
RPI 966
The letters patent expired on 10/04/1994: 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: 04/25/1989. We update with every new RPI gazette, published weekly.
Applicants
SILVIO RENATO FREIRE DA SILVA [BR]
Inventors
S. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/25/1989
RPI 966
#13.1
09/20/1988
RPI 935
#9.1
05/24/1988
RPI 918
#6.1
12/22/1987
RPI 896
#4.1
08/05/1986
RPI 824
#3.1
03/11/1986
RPI 803
#2.1
03/12/1985
RPI 751
#21.1
10/04/1994
RPI 1244
From the same holder
Same category
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