Official data from INPI

PROCESSO PARA PRODUÇÃO DE MAGNÉSIO POR REDUÇÃO METALOTÉRMICA

Arquivada/ExtintaInvention PatentPCT · GB1988000560

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Application data

Number

PI8807606

Type

Invention Patent

Filing

07/11/1988

Publication

04/10/1990

PCT

GB1988000560

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Progress at the INPI

Filing07/11/88
Publication04/10/90
Examination06/26/90
Allowance12/05/95
Grant08/27/96
Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The University of Manchester Institute of Science and Technology

Inventors

A. C. (pessoa física)

Technical data

IPC Classification

C22B 26/22

Priority claims

8716319 · 07/10/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

08/27/1996

RPI 1343

Notificação para pagamento de retribuição

#13.1

06/18/1996

RPI 1333

Deferimento

#9.1

12/05/1995

RPI 1305

Solicitação de exame técnico

#4.1

06/26/1990

RPI 1024

Notificação de entrada na fase nacional - PCT

#1.3

04/10/1990

RPI 1013

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