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Official data from INPI

LIGA METÁLICA PARA ELETRODO DE VELA DE IGNIÇÃO

ConcedidaInvention Patent

Application data

Number

PI8304198

Type

Invention Patent

Filing

08/04/1983

Publication

03/13/1984

Progress at the INPI

  1. Filing08/04/83
  2. Publication03/13/84
  3. Examination06/18/85
  4. Allowance05/02/89
  5. Grant11/28/89
  6. Terminated02/18/92

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Champion Spark Plug Company

US

See this company's full portfolio

Inventors

L. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

406.034 · 08/06/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

09/06/1988

RPI 933

6.2

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

06/18/1985

RPI 765

Publicação do pedido de patente

#3.1

03/13/1984

RPI 699

Pedido de patente depositado

#2.1

10/18/1983

RPI 678

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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