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Official data from INPI

PROCESSO PARA PRODUZIR MAGNÉSIO

Em AnáliseInvention Patent

Application data

Number

PI8406562

Type

Invention Patent

Filing

12/19/1984

Publication

10/15/1985

Progress at the INPI

  1. Filing12/19/84
  2. Publication10/15/85
  3. Examination09/22/87
  4. Allowance08/01/89
  5. Grant04/24/90
  6. Terminated07/04/95

The patent was granted on 04/24/1990 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

G. C. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8334022 · 12/21/1983

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

02/21/1989

RPI 957

6.2

07/26/1988

RPI 927

Solicitação de exame técnico

#4.1

09/22/1987

RPI 883

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

03/05/1985

RPI 750

Anuidade - prazo legal encerrado

#18.2

07/04/1995

RPI 1283

Concessão da patente

#16.1

04/24/1990

RPI 1015

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