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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE LICOR DE CLORETO DE MAGNÉSIO PURO A PARTIR DE MINERAIS SILICOSOS DE MAGNÉSIO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906157

Type

Invention Patent

Filing

12/04/1989

Publication

07/31/1990

Progress at the INPI

  1. Filing12/04/89
  2. Publication07/31/90
  3. Examination06/09/92
  4. Allowance12/31/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Noranda Inc

CA

Noranda Metallurgy Inc

CA

Inventors

G. H. (pessoa física)

CA

J. P. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

CA

585,034 · 12/05/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/12/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

12/31/1996

RPI 1361

14.1

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

07/31/1990

RPI 1026

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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