6.2
05/30/1989
RPI 971
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Application data
Number
PI8504472Type
Invention Patent
Filing
09/11/1985
Publication
07/15/1986
Progress at the INPI
- Filing09/11/85
- Publication07/15/86
- Examination05/19/87
- Allowance04/02/91
- Grant10/29/91
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
N. C. (pessoa física)
JP
Inventors
H. H. (pessoa física)
JP
M. N. (pessoa física)
JP
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Solicitação de exame técnico
#4.1
05/19/1987
RPI 865
Publicação do pedido de patente
#3.1
07/15/1986
RPI 821
Pedido de patente depositado
#2.1
11/26/1985
RPI 788
Carta-patente expirada
#21.1
Patente extinta em 11/09/2000
07/15/2008
RPI 1958
Concessão da patente
#16.1
10/29/1991
RPI 1091
Notificação para pagamento de retribuição
#13.1
07/16/1991
RPI 1076
Deferimento
#9.1
04/02/1991
RPI 1061
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