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Official data from INPI

PROCESSO DE TRATAMENTO CATALITICO DOS GASES DE EXAUSTAO DE UM MOTOR DE COMBUSTAO INTERNA A DOIS TEMPOS

Em AnáliseInvention Patent

Application data

Number

PI7706619

Type

Invention Patent

Filing

10/07/1976

Publication

-

Progress at the INPI

  1. Filing10/07/76
  2. Publication
  3. Examination
  4. Allowance11/10/81
  5. Grant04/26/83
  6. Terminated12/15/87

The patent was granted on 04/26/1983 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ENGELHARD MIN & CHEM

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Inventors

H. J. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

04/26/1983

RPI 653

Arquivamento - Art. 38 §2° da LPI

#11.4

12/21/1982

RPI 635

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

Deferimento

#9.1

11/10/1981

RPI 577

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