20.7
01/21/1987
RPI 848
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: 01/21/1987. We update with every new RPI gazette, published weekly.
Applicants
COMERCIO E IND METALURGICA AUR
Inventors
B. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
01/21/1987
RPI 848
#16.1
04/26/1983
RPI 653
#13.1
12/14/1982
RPI 634
#9.1
07/27/1982
RPI 614
#21.1
12/07/1993
RPI 1201
Same category
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