18.8
11/21/1989
RPI 996
The letters patent expired on 12/14/1993: 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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
M. G. (pessoa física)
Inventors
M. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/21/1989
RPI 996
#18.2
08/29/1989
RPI 984
#16.1
03/29/1983
RPI 649
#13.1
01/11/1983
RPI 638
#9.1
08/24/1982
RPI 618
01/26/1982
RPI 588
#21.1
12/14/1993
RPI 1202
Same category
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