Solicitação de exame técnico
#4.1
06/28/1988
RPI 923
The letters patent expired on 09/18/2001: 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
Metalurgica Rio S/A Industria e Comercio
SP, BR
V. M. (pessoa física)
SP, BR
Inventors
V. M. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/28/1988
RPI 923
#3.2
05/03/1988
RPI 915
#2.1
04/19/1988
RPI 913
#21.1
Patente extinta em 24/11/97 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#20.1
04/06/1993
RPI 1166
#16.1
05/26/1992
RPI 1121
#13.1
02/18/1992
RPI 1107
#9.1
10/15/1991
RPI 1089
#6.1
06/18/1991
RPI 1072
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