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Official data from INPI

Aperfeiçoamento em um processo de recuperação do urânio contido em um ácido fosfórico impuro e aplicação do processo.

Em AnáliseInvention Patent

Application data

Number

PI8003182

Type

Invention Patent

Filing

05/21/1980

Publication

-

Progress at the INPI

  1. Filing05/21/80
  2. Publication
  3. Examination
  4. Allowance04/16/85
  5. Grant10/29/85
  6. Terminated09/25/90

The patent was granted on 10/29/1985 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

F. D. (pessoa física)

L. A. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 12957 · 05/22/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

08/26/1986

RPI 827

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/06/1985

RPI 772

Deferimento

#9.1

04/16/1985

RPI 756

Exigência - art. 36 da LPI

#6.1

03/20/1984

RPI 700

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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