Official data from INPI

APERFEIÇAMENTOS NO PROCESSO E EM APARELHO TELEFÔNICO PARA RECEPÇÃO DE NÚMERO.

Em AnáliseInvention Patent

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Application data

Number

PI8706046

Type

Invention Patent

Filing

11/10/1987

Publication

05/30/1989

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Progress at the INPI

Filing11/10/87
Publication05/30/89
Examination11/28/89
Allowance10/27/92
Grant04/20/93
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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

No applicants.

Inventors

A. F. (pessoa física)

Technical data

IPC Classification

H04M 1/57

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/28/1989

RPI 997

Publicação do pedido de patente

#3.1

05/30/1989

RPI 971

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 10/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/20/1993

RPI 1168

Notificação para pagamento de retribuição

#13.1

03/09/1993

RPI 1162

Deferimento

#9.1

10/27/1992

RPI 1143

14.4

09/25/1990

RPI 1034

14.7

02/13/1990

RPI 1006

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