20.4
02/08/1989
RPI 955
The letters patent expired on 12/26/1995: 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: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants
D. A. (pessoa física)
IT
Inventors
P. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/08/1989
RPI 955
#16.1
11/27/1984
RPI 736
#13.1
09/04/1984
RPI 724
05/15/1984
RPI 708
#9.1
03/27/1984
RPI 701
#15.11
09/13/1983
RPI 673
#6.1
08/02/1983
RPI 667
#21.1
12/26/1995
RPI 1308
From the same holder
Same category
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