Pedido de certificado de adição de invenção
#5.1
07/18/1989
RPI 978
Application data
Number
PI8701494Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 07/18/1989. We update with every new RPI gazette, published weekly.
Applicants
Huzimet Aços Especiais Ltda
SP, BR
Inventors
E. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
07/18/1989
RPI 978
#4.1
03/14/1989
RPI 960
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12/06/1988
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#3.1
09/20/1988
RPI 935
#2.1
07/07/1987
RPI 872
#21.1
Patente extinta em 12/03/2002
07/29/2008
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04/25/1995
RPI 1273
#17.1
03/01/1994
RPI 1213
#16.1
01/26/1993
RPI 1156
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10/06/1992
RPI 1140
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RPI 1117
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08/27/1991
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