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Official data from INPI

PROCESSO PARA FORMAR UM ARTIGO CONFIGURADO DE UM COMPÓSITO DE PLÁSTICO

Em AnáliseInvention Patent

Application data

Number

PI8501172

Type

Invention Patent

Filing

03/15/1985

Publication

11/12/1985

Progress at the INPI

  1. Filing03/15/85
  2. Publication11/12/85
  3. Examination05/27/86
  4. Allowance01/08/91
  5. Grant08/27/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

A. B. (pessoa física)

GB

J. C. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8406869 · 03/16/1984

GB

8429906 · 11/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

11/12/1985

RPI 786

Pedido de patente depositado

#2.1

06/11/1985

RPI 764

Carta-patente expirada

#21.1

Patente extinta em 15/03/2000

07/15/2008

RPI 1958

Republicação - classificação IPC

#15.11

10/15/1991

RPI 1089

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

04/23/1991

RPI 1064

Deferimento

#9.1

01/08/1991

RPI 1049

Exigência - art. 36 da LPI

#6.1

06/05/1990

RPI 1021

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