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Official data from INPI

CATALISADOR REATIVO PARA COMPSICOES LIQUIDAS PARA REVESTIMENTO, COMPOSICAO TERMORRIGIDA PARA REVESTIMENTO E PROCESSO PARA FORMAR O CATALISADOR REATIVO

ConcedidaInvention Patent

Application data

Number

PI8102444

Type

Invention Patent

Filing

04/28/1980

Publication

12/29/1981

Progress at the INPI

  1. Filing04/28/80
  2. Publication12/29/81
  3. Examination06/29/82
  4. Allowance11/03/87
  5. Grant05/31/88
  6. Terminated09/25/90

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

M. J. (pessoa física)

S. G. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/03/1987

RPI 889

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Exigência - art. 36 da LPI

#6.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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