22.6
08/20/1985
RPI 774
The letters patent expired on 08/10/1993: 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: 08/20/1985. 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).
08/20/1985
RPI 774
#22.1
06/18/1985
RPI 765
#16.1
02/24/1982
RPI 592
#21.1
08/10/1993
RPI 1184
From the same holder
Same category
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