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Official data from INPI

PROCESSO DE REGENERACAO DE CATALISADORES DE OXIDACAO,E COMPOSICAO PARA ESTE FIM

Em AnáliseInvention Patent

Application data

Number

PI7702472

Type

Invention Patent

Filing

04/20/1976

Publication

-

Progress at the INPI

  1. Filing04/20/76
  2. Publication
  3. Examination
  4. Allowance01/25/83
  5. Grant07/26/83
  6. Terminated05/10/88

The patent was granted on 07/26/1983 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: 05/10/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

A. M. (pessoa física)

S. A. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/10/1988

RPI 916

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

03/02/1982

RPI 593

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