20.7
08/30/1988
RPI 932
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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
ALCAN BRASIL [BR]
Inventors
C. F. (pessoa física)
M. H. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
08/30/1988
RPI 932
#16.1
04/26/1988
RPI 914
#13.1
12/01/1987
RPI 893
#9.1
08/11/1987
RPI 877
#4.1
08/05/1986
RPI 824
#3.1
10/01/1985
RPI 780
#2.1
05/08/1984
RPI 707
#21.1
10/04/1994
RPI 1244
From the same holder
Same category
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