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Official data from INPI

DISPOSITIVO DIGITAL PARA DISCRIMINAR SINAIS DE DADOS E SINAIS VOCAIS

ConcedidaInvention Patent

Application data

Number

PI8200803

Type

Invention Patent

Filing

02/15/1982

Publication

12/21/1982

Progress at the INPI

  1. Filing02/15/82
  2. Publication12/21/82
  3. Examination08/30/83
  4. Allowance09/10/85
  5. Grant05/27/86
  6. Terminated06/26/90

The patent was granted on 05/27/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CSELT - Centro Studi e Laboratori Telecomunicazioni S.p.A.

IT

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Inventors

F. R. (pessoa física)

IT

P. C. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

67251-A/81 · 02/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

08/30/1983

RPI 671

Publicação do pedido de patente

#3.1

12/21/1982

RPI 635

Pedido de patente depositado

#2.1

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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