18.1
03/31/1987
RPI 858
The letters patent expired on 07/27/1993: 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: 03/31/1987. We update with every new RPI gazette, published weekly.
Applicants
A. A. (pessoa física)
Inventors
A. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
03/31/1987
RPI 858
#16.1
12/29/1981
RPI 584
#21.1
07/27/1993
RPI 1182
10/23/1990
RPI 1038
#20.1
08/14/1990
RPI 1028
04/17/1990
RPI 1014
From the same holder
Same category
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