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Official data from INPI

Sistema para eliminar a deposição de carbono microgranular num filtro para gases de exaustâo de motores diesel e referido filtro.

ArquivadaInvention Patent

Application data

Number

PI8502474

Type

Invention Patent

Filing

05/16/1985

Publication

12/30/1986

Progress at the INPI

  1. Filing05/16/85
  2. Publication12/30/86
  3. Examination08/11/87
  4. Allowance12/06/88
  5. Abandoned
  6. In force

The application was allowed on 12/06/1988 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil Ltda

SP, BR

See this company's full portfolio

Inventors

M. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/12/1989

RPI 999

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

12/30/1986

RPI 845

Pedido de patente depositado

#2.1

08/06/1985

RPI 772

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