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Official data from INPI

CABO PARA O TRANSPORTE DE ENERGIA ELÉTRICA E A TRANSMISSÃO DE SINAIS ÓTICOS

PublicadaInvention Patent

Application data

Number

PI8801477

Type

Invention Patent

Filing

03/25/1988

Publication

11/01/1988

Progress at the INPI

  1. Filing03/25/88
  2. Publication11/01/88
  3. Examination09/18/90
  4. Allowance02/01/94
  5. Grant06/28/94
  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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pirelli Cavi SpA

IT

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Inventors

E. D. (pessoa física)

IT

G. L. (pessoa física)

IT

G. G. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

19905A/87 · 03/31/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/01/1988

RPI 941

Pedido de patente depositado

#2.1

07/05/1988

RPI 924

Carta-patente expirada

#21.1

Patente extinta em 25/03/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/28/1994

RPI 1230

Deferimento

#9.1

02/01/1994

RPI 1209

14.4

03/16/1993

RPI 1163

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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