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Official data from INPI

PROCESSO E DISPOSIÇÃO PARA O AJUSTE DAS IMPEDÂNCIAS-IMAGEM DE LINHAS DE ASSINANTE DE CIRCUITOS HÍBRIDOS PROGRAMÁVEIS

PublicadaInvention Patent

Application data

Number

PI8801756

Type

Invention Patent

Filing

04/13/1988

Publication

11/16/1988

Progress at the INPI

  1. Filing04/13/88
  2. Publication11/16/88
  3. Examination08/07/90
  4. Allowance10/26/93
  5. Grant05/31/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

M. M. (pessoa física)

DE

R. L. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

DE

P 37 12 662.8 · 04/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/16/1988

RPI 943

Pedido de patente depositado

#2.1

08/23/1988

RPI 931

Carta-patente expirada

#21.1

Patente extinta em 13/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

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