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Official data from INPI

APARELHO TELEFÔNICO PÚBLICO COM CONEXÃO PERMANENTE

PublicadaInvention Patent

Application data

Number

PI8803073

Type

Invention Patent

Filing

06/23/1988

Publication

01/10/1989

Progress at the INPI

  1. Filing06/23/88
  2. Publication01/10/89
  3. Examination02/26/91
  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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Crouzet

FR

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Inventors

J. A. (pessoa física)

FR

T. S. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

87 08862 · 06/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

11/16/1988

RPI 943

Carta-patente expirada

#21.1

Patente extinta em 23/06/2003

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

07/06/1993

RPI 1179

Solicitação de exame técnico

#4.1

02/26/1991

RPI 1056

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