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Official data from INPI

ESTRUTURA DE RESPIRADOURO E FECHO VENTILADO PARA COPO DE TINTA.

Em AnáliseInvention Patent

Application data

Number

PI8306190

Type

Invention Patent

Filing

11/10/1983

Publication

07/31/1984

Progress at the INPI

  1. Filing11/10/83
  2. Publication07/31/84
  3. Examination12/18/84
  4. Allowance12/17/85
  5. Grant08/26/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/21/1989. 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

G. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

453407 · 12/27/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/21/1989

RPI 957

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Republicação - classificação IPC

#15.11

09/03/1985

RPI 776

Exigência - art. 36 da LPI

#6.1

06/11/1985

RPI 764

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

01/24/1984

RPI 692

Carta-patente expirada

#21.1

Patente extinta em 10/11/98

07/01/2008

RPI 1956

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