Pedido de certificado de adição de invenção
#5.1
06/21/1988
RPI 922
The letters patent expired on 09/17/1996: 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: 06/21/1988. We update with every new RPI gazette, published weekly.
Applicants
Metalúrgica Leitzke Ltda.
SC, BR
Inventors
W. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
06/21/1988
RPI 922
#4.1
03/08/1988
RPI 907
#3.1
12/08/1987
RPI 894
#2.1
01/13/1987
RPI 847
#21.1
09/17/1996
RPI 1346
#16.1
09/24/1991
RPI 1086
#13.1
05/21/1991
RPI 1068
#9.1
02/05/1991
RPI 1053
#6.1
08/14/1990
RPI 1028
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Same category
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