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Official data from INPI

DISPOSITIVO DE TRANSMISSAO DE SINAIS ENTRE UMA SERIE DE APARELHOS DE AQUISICAO DE DADOS

ConcedidaInvention Patent

Application data

Number

PI8307015

Type

Invention Patent

Filing

12/22/1982

Publication

07/31/1984

Progress at the INPI

  1. Filing12/22/82
  2. Publication07/31/84
  3. Examination08/05/86
  4. Allowance11/10/87
  5. Grant06/28/88
  6. Terminated05/30/95

The patent was granted on 06/28/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INST FRANCAIS DU PETROLE [FR]

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Inventors

R. J. (pessoa física)

T. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

02/28/1984

RPI 697

Anuidade - prazo legal encerrado

#18.2

05/30/1995

RPI 1278

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