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Official data from INPI

Processo para a preparação de catalisadores que comportam uma fase ativa.

ConcedidaInvention Patent
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Application data

Number

PI8102463

Type

Invention Patent

Filing

04/23/1981

Publication

01/05/1982
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Progress at the INPI

  1. Filing04/23/81
  2. Publication01/05/82
  3. Examination01/31/84
  4. Allowance03/11/86
  5. Grant09/30/86
  6. Expired10/01/96

The letters patent expired on 10/01/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

D. J. (pessoa física)

Technical data

IPC Classification

C09B 1/503

Priority claims

FR

80 09314 · 04/25/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

07/01/1986

RPI 819

Deferimento

#9.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Exigência - art. 36 da LPI

#6.1

11/20/1984

RPI 735

Solicitação de exame técnico

#4.1

01/31/1984

RPI 693

Publicação do pedido de patente

#3.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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