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Official data from INPI

PROCESSO PARA PRODUZIR MATERIAL E RESISTOR DE CERÂMICA DE CÉLULAS ABERTAS ELETRICAMENTE SEMICONDUTOR, SISTEMA DE SOLVENTE ORGÂNICO, DISPERSÃO AQUOSO E ARTIGO COMPOSTO.

IndeferidaInvention Patent

Application data

Number

PI8400009

Type

Invention Patent

Filing

01/02/1919

Publication

07/31/1984

Progress at the INPI

Under appeal
  1. Filing01/02/19
  2. Publication07/31/84
  3. Examination12/18/84
  4. Refused12/12/89
  5. Grant
  6. In force

The application was refused by the INPI on 12/12/1989. The invention was never patented.

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

Champion Spark Plug Company

US

See this company's full portfolio

Inventors

K. I. (pessoa física)

N. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

455416 · 01/03/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

12/12/1989

RPI 999

Conhecimento de parecer técnico

#7.1

05/09/1989

RPI 968

6.2

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

12/18/1984

RPI 739

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

03/20/1984

RPI 700

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