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Official data from INPI

CIRCUITO DIAGNÓTICO PARA REDES DE CONEXÃO PCM.

ConcedidaInvention Patent

Application data

Number

PI8100788

Type

Invention Patent

Filing

02/09/1981

Publication

-

Progress at the INPI

  1. Filing02/09/81
  2. Publication
  3. Examination01/26/82
  4. Allowance08/07/84
  5. Grant05/28/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 05/28/1985. 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

B. P. (pessoa física)

B. R. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

67259-A/80 · 02/20/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

04/03/1984

RPI 702

Solicitação de exame técnico

#4.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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