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Official data from INPI

PROCESSO PARA O BENEFICIAMENTO DE MINERIOS DE FOSFATO

ConcedidaInvention Patent

Application data

Number

PI8102350

Type

Invention Patent

Filing

04/18/1980

Publication

12/22/1981

Progress at the INPI

  1. Filing04/18/80
  2. Publication12/22/81
  3. Examination11/30/82
  4. Allowance04/08/86
  5. Grant10/29/86
  6. Terminated09/25/90

The patent was granted on 10/29/1986 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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINEMET RECH SA

Inventors

D. P. (pessoa física)

P. J. (pessoa física)

R. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

11/30/1982

RPI 632

Publicação do pedido de patente

#3.1

12/22/1981

RPI 583

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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