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Official data from INPI

PROCESSO PARA PRODUZIR ELETRODO COMPOSTO PARA VELA DE IGNIÇÃO E ELETRODO RESPECTIVO

ConcedidaInvention Patent

Application data

Number

PI8205353

Type

Invention Patent

Filing

09/13/1919

Publication

08/23/1983

Progress at the INPI

  1. Filing09/13/19
  2. Publication08/23/83
  3. Examination07/02/85
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Terminated01/03/95

The patent was granted on 08/25/1987 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: 08/25/1987. 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

R. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

316.206 · 10/29/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

02/25/1986

RPI 801

Solicitação de exame técnico

#4.1

07/02/1985

RPI 767

Publicação do pedido de patente

#3.1

08/23/1983

RPI 670

Pedido de patente depositado

#2.1

10/26/1982

RPI 627

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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