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Official data from INPI

LIGA DE ALUMÍNIO

Em AnáliseInvention Patent

Application data

Number

PI8300859

Type

Invention Patent

Filing

02/23/1983

Publication

11/16/1983

Progress at the INPI

  1. Filing02/23/83
  2. Publication11/16/83
  3. Examination11/12/85
  4. Allowance08/01/89
  5. Grant02/06/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great

GB

Inventors

B. E. (pessoa física)

GB

C. P. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8205746 · 02/26/1982

GB

8209010 · 03/26/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/28/1989

RPI 997

Deferimento

#9.1

08/01/1989

RPI 980

Exigência - art. 36 da LPI

#6.1

11/08/1988

RPI 942

6.2

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Carta-patente expirada

#21.1

Patente extinta em 23/02/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

02/06/1990

RPI 1005

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