20.4
10/20/1987
RPI 887
The letters patent expired on 09/21/1993: 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: 10/20/1987. We update with every new RPI gazette, published weekly.
Applicants
TUPY FUNDICAO SA
Inventors
F. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/20/1987
RPI 887
#20.1
10/13/1987
RPI 886
10/06/1987
RPI 885
#16.1
11/27/1984
RPI 736
02/28/1984
RPI 697
12/27/1983
RPI 688
#12.1
06/15/1982
RPI 608
#21.1
09/21/1993
RPI 1190
Same category
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