18.8
06/12/1984
RPI 712
The letters patent expired on 11/17/1992: 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: 06/12/1984. We update with every new RPI gazette, published weekly.
Applicants
S. C. (pessoa física)
JP
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/12/1984
RPI 712
#18.2
04/17/1984
RPI 704
#16.1
05/06/1980
RPI 498
#21.1
11/17/1992
RPI 1146
From the same holder
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