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Official data from INPI

APARELHO E PROCESSO PARA RESFRIAR ESCÓRIA DE METAL NÃO-FERROSO

PublicadaInvention Patent

Application data

Number

PI8605385

Type

Invention Patent

Filing

10/31/1986

Publication

08/04/1987

Progress at the INPI

  1. Filing10/31/86
  2. Publication08/04/87
  3. Examination01/23/90
  4. Allowance05/26/92
  5. Grant01/26/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 08/04/1987. 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. I. (pessoa física)

CA

M. V. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

GB

8526969 · 11/01/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/04/1987

RPI 876

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Carta-patente expirada

#21.1

Patente extinta em 31/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

05/26/1992

RPI 1121

Exigência - art. 36 da LPI

#6.1

10/01/1991

RPI 1087

Solicitação de exame técnico

#4.1

01/23/1990

RPI 1003

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