Solicitação de exame técnico
#4.1
08/09/1988
RPI 929
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: 08/09/1988. We update with every new RPI gazette, published weekly.
Applicants
Rontan Eletro Metalúrgica Ltda
SP, BR
Inventors
A. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/09/1988
RPI 929
#3.2
12/22/1987
RPI 896
#2.1
12/08/1987
RPI 894
#21.1
Patente extinta em 16/07/97 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).
09/18/2001
RPI 1602
#16.1
02/24/1993
RPI 1160
#13.1
09/22/1992
RPI 1138
11/12/1991
RPI 1093
#9.1
09/03/1991
RPI 1083
#6.1
04/09/1991
RPI 1062
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