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Official data from INPI

PROCESSO DE FORMAR UMA PELÍCULA DE ÓXIDO ANÓDICO SOBRE UMA TIRA DE ALUMÍNIO, TIRA DE ALUMÍNIO CONTÍNUA E ARTIGOS FORMADOS DA MESMA E ESTRUTURA DE DOIS OU MAIS COMPONENTES DE ALUMÍNIO.

Em AnáliseInvention Patent

Application data

Number

PI8505505

Type

Invention Patent

Filing

11/04/1985

Publication

08/05/1986

Progress at the INPI

Under appeal
  1. Filing11/04/85
  2. Publication08/05/86
  3. Examination12/09/86
  4. Refused02/11/92
  5. Grant
  6. In force

The application was refused by the INPI on 02/11/1992. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 12/09/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

N. D. (pessoa física)

P. S. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8427943 · 11/05/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/09/1986

RPI 842

Publicação do pedido de patente

#3.1

08/05/1986

RPI 824

Pedido de patente depositado

#2.1

01/14/1986

RPI 795

Indeferimento

#9.2

02/11/1992

RPI 1106

Conhecimento de parecer técnico

#7.1

10/02/1990

RPI 1035

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