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Official data from INPI

PROCESSO PARA RECUPERACAO DE UM CONCENTRADO CONTENDO URANIO E DE ACIDO FOSFORICO PURIFICADO A PARTIR DE ACIDO FOSFORICO DO PRCESSO VIA UMIDA

ConcedidaInvention Patent

Application data

Number

PI8000441

Type

Invention Patent

Filing

01/25/1979

Publication

-

Progress at the INPI

  1. Filing01/25/79
  2. Publication
  3. Examination11/16/82
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Terminated09/25/90

The patent was granted on 03/26/1985 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAMICARBON

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Inventors

J. J. (pessoa física)

W. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Republicação - classificação IPC

#15.11

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

11/29/1983

RPI 684

Solicitação de exame técnico

#4.1

11/16/1982

RPI 630

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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