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Official data from INPI

SUPERVISOR DE FALHAS PARA CENTRAIS TELEFÔNICAS

PublicadaInvention Patent
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Application data

Number

PI8705582

Type

Invention Patent

Filing

10/19/1987

Publication

04/12/1988
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Progress at the INPI

  1. Filing10/19/87
  2. Publication04/12/88
  3. Examination09/18/90
  4. Allowance06/15/93
  5. Grant04/26/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações do Rio de Janeiro S/A - Telerj

RJ, BR

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Inventors

G. C. (pessoa física)

BR

Technical data

IPC Classification

H04Q 1/24

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

04/12/1988

RPI 912

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 19/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/26/1994

RPI 1221

Notificação para pagamento de retribuição

#13.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/15/1993

RPI 1176

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

Exigência - art. 36 da LPI

#6.1

03/03/1992

RPI 1109

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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