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Official data from INPI

Processo de obtenção de um ácido fosfórico purificado.

ConcedidaInvention Patent

Application data

Number

PI7906203

Type

Invention Patent

Filing

09/27/1979

Publication

-

Progress at the INPI

  1. Filing09/27/79
  2. Publication
  3. Examination06/29/82
  4. Allowance01/24/84
  5. Grant07/31/84
  6. Terminated04/26/94

The patent was granted on 07/31/1984 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: 07/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

W. L. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

78 27887 · 09/29/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

08/02/1983

RPI 667

6.2

02/08/1983

RPI 642

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Anuidade - prazo legal encerrado

#18.2

04/26/1994

RPI 1221

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