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Official data from INPI

Estrutura semelhante a folha e processo de produção.

Em AnáliseInvention Patent

Application data

Number

PI8003479

Type

Invention Patent

Filing

06/04/1980

Publication

01/05/1981

Progress at the INPI

  1. Filing06/04/80
  2. Publication01/05/81
  3. Examination03/01/83
  4. Allowance03/13/84
  5. Grant08/28/84
  6. Terminated06/30/87

The patent was granted on 08/28/1984 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

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Inventors

H. J. (pessoa física)

Technical data

Priority claims

GB

7919669 · 06/06/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/30/1987

RPI 871

300

08/05/1986

RPI 824

Cessão de direito de exploração

#22.1

07/22/1986

RPI 822

201

04/01/1986

RPI 806

Pedido de licença voluntária

#17.1

10/15/1985

RPI 782

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

07/03/1984

RPI 715

Deferimento

#9.1

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

10/04/1983

RPI 676

Solicitação de exame técnico

#4.1

03/01/1983

RPI 645

Publicação do pedido de patente

#3.1

01/05/1981

RPI 533

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