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Official data from INPI

DISPOSIÇÃO DE CIRCUITO PARA CIRCUITOS DE CONEXÃO DE ASSINANTES DE UMA CENTRAL DIGITAL DE COMUNICAÇÃO MULTIPLEX TEMPORAL-TELECOMUNICAÇÃO

PublicadaInvention Patent

Application data

Number

PI8801017

Type

Invention Patent

Filing

03/08/1988

Publication

10/11/1988

Progress at the INPI

  1. Filing03/08/88
  2. Publication10/11/88
  3. Examination02/26/91
  4. Allowance06/08/93
  5. Grant10/26/93
  6. Terminated12/31/96

The patent was granted on 10/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

N. W. (pessoa física)

DE

R. L. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

DE

P 37 07 500.4 · 03/09/1987

DE

P 37 11 030.6 · 04/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/11/1988

RPI 938

Pedido de patente depositado

#2.1

05/31/1988

RPI 919

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

02/26/1991

RPI 1056

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