20.4
10/25/1988
RPI 940
The letters patent expired on 04/25/1995: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
M. I. (pessoa física)
Inventors
H. S. (pessoa física)
H. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
10/25/1983
RPI 679
#13.1
09/06/1983
RPI 672
#9.1
04/19/1983
RPI 652
#4.1
04/13/1982
RPI 599
#21.1
04/25/1995
RPI 1273
From the same holder
Same category
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