Concessão da patente
#16.1
12/29/1981
RPI 584
The letters patent expired on 09/21/1993: 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: 12/29/1981. We update with every new RPI gazette, published weekly.
Applicants
P. T. (pessoa física)
Inventors
Y. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/29/1981
RPI 584
#21.1
09/21/1993
RPI 1190
Same category
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