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Official data from INPI

SISTEMA E PROCESSO PARA CORREÇÃO DE ERROS EM SINAIS DE DADOS DIGITAIS

PublicadaInvention Patent

Application data

Number

PI8700426

Type

Invention Patent

Filing

01/30/1987

Publication

12/15/1987

Progress at the INPI

  1. Filing01/30/87
  2. Publication12/15/87
  3. Examination10/09/90
  4. Allowance07/19/94
  5. Grant01/31/95
  6. 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 specialist

Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

See this company's full portfolio

Inventors

H. M. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

PO19676/1986 · 01/31/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/15/1987

RPI 895

Pedido de patente depositado

#2.1

06/02/1987

RPI 867

Carta-patente expirada

#21.1

Patente extinta em 30/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

11/15/1994

RPI 1250

Deferimento

#9.1

07/19/1994

RPI 1233

6.2

09/28/1993

RPI 1191

Solicitação de exame técnico

#4.1

10/09/1990

RPI 1036

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