18.8
02/23/1988
RPI 905
The letters patent expired on 07/20/1993: 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
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/23/1988
RPI 905
#18.2
11/17/1987
RPI 891
09/30/1986
RPI 832
09/23/1986
RPI 831
#16.1
02/24/1982
RPI 592
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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