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Official data from INPI

PROCESSO PARA CONSTATAR O TEOR DE ÁLCOOL E/OU O PODER CALORÍFICO DE COMBUSTÍVEIS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906670

Type

Invention Patent

Filing

12/21/1989

Publication

09/11/1990

Progress at the INPI

  1. Filing12/21/89
  2. Publication09/11/90
  3. Examination10/06/92
  4. Allowance12/26/95
  5. Grant09/24/96
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FEV Motorentechnik GmbH & Co. KG

DE

Inventors

E. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 43 177.7 · 12/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

09/24/1996

RPI 1347

Deferimento

#9.1

12/26/1995

RPI 1308

Solicitação de exame técnico

#4.1

10/06/1992

RPI 1140

Publicação do pedido de patente

#3.1

09/11/1990

RPI 1032

Pedido de patente depositado

#2.1

04/03/1990

RPI 1012

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