18.8
05/15/1984
RPI 708
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: 05/15/1984. We update with every new RPI gazette, published weekly.
Applicants
SIBE
Inventors
D. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/15/1984
RPI 708
#18.2
03/20/1984
RPI 700
#16.1
06/29/1982
RPI 610
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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