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Official data from INPI

ESTRUTURA PARA PERMUTA DE ENERGIA, RESFRIADOR DE ÓLEO AUTOMOTIVO E PROCESSO PARA FORMAÇÃO DE UM RESFRIADOR DE ÓLEO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005827

Type

Invention Patent

Filing

11/16/1990

Publication

09/24/1991

Progress at the INPI

  1. Filing11/16/90
  2. Publication09/24/91
  3. Examination06/29/93
  4. Allowance03/28/95
  5. Grant10/31/95
  6. Expired06/08/10

The letters patent expired on 06/08/2010: 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: 06/08/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Long Manufacturing Ltd

CA

Valeo Engine Cooling, Inc

US

Inventors

C. S. (pessoa física)

US

K. M. (pessoa física)

US

P. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

437,680 · 11/17/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/11/2005

06/08/2010

RPI 2057

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

03/28/1995

RPI 1269

Exigência - art. 36 da LPI

#6.1

10/04/1994

RPI 1244

14.1

07/27/1993

RPI 1182

Solicitação de exame técnico

#4.1

06/29/1993

RPI 1178

Publicação do pedido de patente

#3.1

09/24/1991

RPI 1086

Pedido de patente depositado

#2.1

05/21/1991

RPI 1068

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