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Official data from INPI

PROCESSO E DISPOSITIVO PARA A DETERMINACAO DO TEOR DE MAGNETITA E FOSFORO EM MINERIOS COM TEOR DE MAGNETITA

ConcedidaInvention Patent

Application data

Number

PI8106030

Type

Invention Patent

Filing

01/18/1980

Publication

11/24/1981

Progress at the INPI

  1. Filing01/18/80
  2. Publication11/24/81
  3. Examination05/31/83
  4. Allowance12/17/85
  5. Grant06/24/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUOSSAVAARA KIIRUNAVAARA AB

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Inventors

H. H. (pessoa física)

K. R. (pessoa física)

S. R. (pessoa física)

W. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

8.1

11/05/1985

RPI 785

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Exigência - art. 36 da LPI

#6.1

10/02/1984

RPI 728

Solicitação de exame técnico

#4.1

05/31/1983

RPI 658

Notificação de entrada na fase nacional - PCT

#1.3

11/24/1981

RPI 579

Carta-patente expirada

#21.1

Patente extinta em 10/01/96

08/19/2008

RPI 1963

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