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Official data from INPI

PROCESSO PARA FORMAR UMA JUNTA DE UM OU MAIS CABOS COM ISOLAMENTOS DE PAPEL IMPREGNADO E ISOLAMENTOS SÓLIDOS

Em AnáliseInvention Patent

Application data

Number

PI8701026

Type

Invention Patent

Filing

02/16/1987

Publication

01/05/1988

Progress at the INPI

  1. Filing02/16/87
  2. Publication01/05/88
  3. Examination09/27/88
  4. Allowance05/31/94
  5. Grant11/29/94
  6. 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pirelli Cabos S/A

SP, BR

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Inventors

C. T. (pessoa física)

BR

M. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação antecipada

#3.2

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Carta-patente expirada

#21.1

Patente extinta em 16/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/29/1994

RPI 1252

Deferimento

#9.1

05/31/1994

RPI 1226

Exigência - art. 36 da LPI

#6.1

08/24/1993

RPI 1186

14.4

09/08/1992

RPI 1136

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