18.8
02/23/1988
RPI 905
The letters patent expired on 07/06/1993: 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: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
RELA SA IND COM
Inventors
R. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/23/1988
RPI 905
#18.2
12/15/1987
RPI 895
#16.1
12/29/1981
RPI 584
#13.1
12/15/1981
RPI 582
#21.1
07/06/1993
RPI 1179
From the same holder
Same category
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