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Official data from INPI

PROCESSO DE PURIFICACAO DE URANIO POR TROCA IONICA

Em AnáliseInvention Patent

Application data

Number

PI8002058

Type

Invention Patent

Filing

04/02/1980

Publication

10/06/1981

Progress at the INPI

  1. Filing04/02/80
  2. Publication10/06/81
  3. Examination
  4. Allowance10/29/86
  5. Grant08/25/87
  6. Terminated05/17/88

The patent was granted on 08/25/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IPEN SAO PAULO INST PESQUISAS [BR]

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Inventors

A. A. (pessoa física)

J. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

10/29/1986

RPI 836

8.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

06/04/1985

RPI 763

Exigência - art. 36 da LPI

#6.1

12/13/1983

RPI 686

Solicitação de exame não realizada

#4.2

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

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