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Official data from INPI

TRATAMENTO DE PURIFICACAO DE UM CONCENTRADO URANIFERO

ConcedidaInvention Patent

Application data

Number

PI8207981

Type

Invention Patent

Filing

11/17/1981

Publication

11/08/1983

Progress at the INPI

  1. Filing11/17/81
  2. Publication11/08/83
  3. Examination04/09/85
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Terminated06/26/90

The patent was granted on 07/26/1988 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PECHINEY UGINE KUHLMANN URAN [FR]

Inventors

J. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

02/17/1987

RPI 852

4.1.2

05/21/1985

RPI 761

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Notificação de entrada na fase nacional - PCT

#1.3

11/08/1983

RPI 681

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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