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Official data from INPI

DISPOSITIVO PARA COMPATIBILIZAR O USO DE ALIMENTAÇÃO SIMULTÂNEA DE DOIS COMBUSTÍVEIS EM UM MOTOR DE COMBUSTÃO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI8505717

Type

Invention Patent

Filing

11/13/1985

Publication

06/09/1987

Progress at the INPI

  1. Filing11/13/85
  2. Publication06/09/87
  3. Examination08/18/87
  4. Allowance05/09/89
  5. Grant09/25/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. C. (pessoa física)

RJ, BR

Inventors

L. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Recurso

#12.1

08/29/1989

RPI 984

Deferimento

#9.1

05/09/1989

RPI 968

Exigência - art. 36 da LPI

#6.1

10/25/1988

RPI 940

5.2

01/12/1988

RPI 899

Solicitação de exame técnico

#4.1

08/18/1987

RPI 878

Publicação do pedido de patente

#3.1

06/09/1987

RPI 868

Pedido de patente depositado

#2.1

02/18/1986

RPI 800

Carta-patente expirada

#21.1

Patente extinta em 13/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/25/1990

RPI 1034

110

05/22/1990

RPI 1019

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