Concessão da patente
#16.1
09/29/1987
RPI 884
The letters patent expired on 11/15/1994: 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: 09/29/1987. We update with every new RPI gazette, published weekly.
Applicants
METALURGICA IPE S A [BR]
Inventors
S. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/29/1987
RPI 884
#13.1
06/23/1987
RPI 870
#9.1
02/17/1987
RPI 852
#6.1
07/08/1986
RPI 820
#6.1
11/19/1985
RPI 787
#4.1
07/17/1984
RPI 717
#3.1
03/13/1984
RPI 699
#2.1
09/21/1982
RPI 622
#21.1
11/15/1994
RPI 1250
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Same category
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