20.7
09/06/1988
RPI 933
The letters patent expired on 12/07/1993: 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: 09/06/1988. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/06/1988
RPI 933
#16.1
03/17/1987
RPI 856
#13.1
07/15/1986
RPI 821
#9.1
03/18/1986
RPI 804
#15.11
07/23/1985
RPI 770
#6.1
07/23/1985
RPI 770
06/25/1985
RPI 766
#6.1
10/09/1984
RPI 729
05/29/1984
RPI 710
#4.1
09/06/1983
RPI 672
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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