Solicitação de exame técnico
#4.1
08/08/1989
RPI 981
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Official data from INPI
MÉTODO DE CONTROLE AUTOMÁTICO DE GANHO EM UM PROCESSADOR DIGITAL DE SINAIS.
Em AnáliseInvention Patent
Application data
Number
PI8604622Type
Invention Patent
Filing
09/25/1986
Publication
05/26/1987
Progress at the INPI
- Filing09/25/86
- Publication05/26/87
- Examination08/08/89
- Allowance02/24/93
- Grant07/27/93
- Expired07/22/08
The letters patent expired on 07/22/2008: 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: 08/08/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
I. C. (pessoa física)
US
Inventors
L. W. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
05/26/1987
RPI 866
Pedido de patente depositado
#2.1
03/24/1987
RPI 857
Carta-patente expirada
#21.1
Patente extinta em 25/09/2001
07/22/2008
RPI 1959
Concessão da patente
#16.1
07/27/1993
RPI 1182
Republicação - classificação IPC
#15.11
06/01/1993
RPI 1174
Deferimento
#9.1
02/24/1993
RPI 1160
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