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Official data from INPI

DISPOSIÇÃO DE CIRCUITO PARA CENTRAIS TELEFÔNICAS DE COMANDO CENTRAL, SOBRETUDO NA TÉCNICA-PCM

PublicadaInvention Patent

Application data

Number

PI8806639

Type

Invention Patent

Filing

12/15/1988

Publication

08/29/1989

Progress at the INPI

  1. Filing12/15/88
  2. Publication08/29/89
  3. Examination11/20/90
  4. Allowance11/16/93
  5. Grant06/28/94
  6. Terminated06/25/96

The patent was granted on 06/28/1994 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

D. S. (pessoa física)

DE

W. N. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 42 687.7 · 12/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/29/1989

RPI 984

Pedido de patente depositado

#2.1

04/18/1989

RPI 965

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

03/29/1994

RPI 1217

Notificação para pagamento de retribuição

#13.1

03/22/1994

RPI 1216

Deferimento

#9.1

11/16/1993

RPI 1198

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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