20.7
06/28/1988
RPI 923
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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
SOM IND E COMERCIO S A
Inventors
C. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/28/1988
RPI 923
11/10/1987
RPI 890
#20.1
10/08/1985
RPI 781
#16.1
10/30/1984
RPI 732
#13.1
06/26/1984
RPI 714
#9.1
03/07/1984
RPI 698
#6.1
07/05/1983
RPI 663
#6.1
12/07/1982
RPI 633
#21.1
12/07/1993
RPI 1201
Same category
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