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Official data from INPI

SISTEMA DE COMUTAÇÃO DE TELECOMUNICAÇÃO

Em ExigênciaInvention Patent

Application data

Number

PI8500690

Type

Invention Patent

Filing

02/14/1985

Publication

10/01/1985

Progress at the INPI

  1. Filing02/14/85
  2. Publication10/01/85
  3. Examination11/25/86
  4. Allowance06/19/90
  5. Grant12/26/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 06/20/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcatel N.V.

NL

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Inventors

F. S. (pessoa física)

BE

P. G. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

BE

898.960 · 02/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

06/20/1989

RPI 974

14.1

11/17/1987

RPI 891

Solicitação de exame técnico

#4.1

11/25/1986

RPI 840

Publicação do pedido de patente

#3.1

10/01/1985

RPI 780

Pedido de patente depositado

#2.1

05/07/1985

RPI 759

Carta-patente expirada

#21.1

Patente extinta em 14/02/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

10/02/1990

RPI 1035

Deferimento

#9.1

06/19/1990

RPI 1023

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