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Official data from INPI

DISPOSITIVO DOSADOR DE AR/GÁS PARA UM MOTOR DE COMBUSTÃO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI8503363

Type

Invention Patent

Filing

07/15/1985

Publication

02/24/1987

Progress at the INPI

  1. Filing07/15/85
  2. Publication02/24/87
  3. Examination06/16/87
  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

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Carta-patente expirada

#21.1

Patente extinta em 15/07/2000

07/15/2008

RPI 1958

201

02/02/1993

RPI 1157

Pedido de licença voluntária

#17.1

10/29/1991

RPI 1091

Concessão da patente

#16.1

09/25/1990

RPI 1034

110

05/22/1990

RPI 1019

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