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Official data from INPI

MODULO DE COMUTACAO DIGITAL DE SISTEMAS DE TELECOMUNICACOES MULTIPLEXADOS POR DIVISAO DE TEMPO ,CONJUNTO E REDE

ConcedidaInvention Patent
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Application data

Number

PI8103983

Type

Invention Patent

Filing

06/25/1980

Publication

03/09/1982
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Progress at the INPI

  1. Filing06/25/80
  2. Publication03/09/82
  3. Examination03/27/84
  4. Allowance07/30/85
  5. Grant04/29/86
  6. Terminated02/04/92

The patent was granted on 04/29/1986 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PLESSEY CO LTD

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Inventors

F. J. (pessoa física)

M. T. (pessoa física)

Technical data

IPC Classification

H04Q 11/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

Exigência - art. 36 da LPI

#6.1

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

03/27/1984

RPI 701

14.4

08/03/1982

RPI 615

Publicação do pedido de patente

#3.1

03/09/1982

RPI 594

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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