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Official data from INPI

PROCESSO E DISPOSITIVO PARA TRATAR TERMICAMENTE UM FIO DE AÇO CARBONO

Em AnáliseInvention Patent

Application data

Number

PI8706432

Type

Invention Patent

Filing

11/27/1987

Publication

07/12/1988

Progress at the INPI

  1. Filing11/27/87
  2. Publication07/12/88
  3. Examination10/23/90
  4. Allowance06/14/94
  5. Grant03/28/95
  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.

Talk to a specialist

Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. G. Etablissements Michelin - Michelin Et Cie

FR

Michelin & Cie (Compagnie Générale des Etablissements Michelin).

FR

Inventors

A. R. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

86/16 705 · 11/27/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.4

10/25/1988

RPI 940

Publicação do pedido de patente

#3.1

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 27/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

10/18/1994

RPI 1246

Deferimento

#9.1

06/14/1994

RPI 1228

Exigência - art. 36 da LPI

#6.1

01/25/1994

RPI 1208

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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