Solicitação de exame técnico
#4.1
07/26/1988
RPI 927
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Official data from INPI
Arranjo de suspensão para as barras de anodo de um aparelho eletrolítico para a produção de alumínio.
Em AnáliseInvention Patent
Application data
Number
PI8704196Type
Invention Patent
Filing
08/12/1987
Publication
04/12/1988
Progress at the INPI
- Filing08/12/87
- Publication04/12/88
- Examination07/26/88
- Allowance01/24/95
- Grant06/27/95
- Expired07/29/08
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: 07/26/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
N. A. (pessoa física)
NO
Inventors
E. S. (pessoa física)
NO
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
04/12/1988
RPI 912
Pedido de patente depositado
#2.1
10/06/1987
RPI 885
Carta-patente expirada
#21.1
Patente extinta em 12/08/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
06/27/1995
RPI 1282
Deferimento
#9.1
01/24/1995
RPI 1260
Exigência - art. 36 da LPI
#6.1
07/19/1994
RPI 1233
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