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Official data from INPI

PROCESSO PARA A VERIFICAÇÃO DO TEOR DE ÁLCOOL E/OU DO VALOR CALORÍFICO DE COMBUSTÍVEIS E DISPOSITIVO PARA REALIZAÇÃO DO PROCESSO

Prazo de SigiloInvention Patent

Application data

Number

PI8904033

Type

Invention Patent

Filing

08/10/1989

Publication

10/02/1990

Progress at the INPI

  1. Filing08/10/89
  2. Publication10/02/90
  3. Examination11/24/92
  4. Allowance06/25/96
  5. Grant04/29/97
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fev Motorentechnik GmbH & Co KG

DE

Inventors

G. S. (pessoa física)

DE

H. K. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 41 264.0 · 12/08/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/07/1989

RPI 994

Carta-patente expirada

#21.1

Patente extinta em 10/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

06/25/1996

RPI 1334

Exigência - art. 36 da LPI

#6.1

12/19/1995

RPI 1307

Solicitação de exame técnico

#4.1

11/24/1992

RPI 1147

Publicação do pedido de patente

#3.1

10/02/1990

RPI 1035

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