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Official data from INPI

PROCESSO E LUBRIFICANTE PARA FORMAÇÃO DE METAL E PROCESSO PARA FORMULAÇÃO DE UMA ESTRUTURA DE COMPONENTES PERFILADOS DE ALUMÍNIO

Em AnáliseInvention Patent

Application data

Number

PI8600334

Type

Invention Patent

Filing

01/28/1986

Publication

10/07/1986

Progress at the INPI

  1. Filing01/28/86
  2. Publication10/07/86
  3. Examination11/08/88
  4. Allowance05/26/92
  5. Grant01/26/93
  6. Terminated09/26/95

The patent was granted on 01/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. 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. D. (pessoa física)

GB

M. F. (pessoa física)

GB

W. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8502148 · 01/29/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/08/1988

RPI 942

Publicação do pedido de patente

#3.1

10/07/1986

RPI 833

Pedido de patente depositado

#2.1

07/22/1986

RPI 822

Anuidade - prazo legal encerrado

#18.2

09/26/1995

RPI 1295

Concessão da patente

#16.1

01/26/1993

RPI 1156

Deferimento

#9.1

05/26/1992

RPI 1121

Republicação - classificação IPC

#15.11

11/12/1991

RPI 1093

Exigência - art. 36 da LPI

#6.1

04/30/1991

RPI 1065

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