Concessão da patente
#16.1
10/20/1981
RPI 574
The letters patent expired on 11/24/1992: 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: 10/20/1981. We update with every new RPI gazette, published weekly.
Applicants
A. Z. (pessoa física)
SP, BR
L. A. (pessoa física)
SP, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/20/1981
RPI 574
#21.1
11/24/1992
RPI 1147
From the same holder
Same category
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