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Official data from INPI

CONVERSOR CATALÍTICO, PROCESSO PARA FAZER O MESMO E PROCESSO PARA FAZER UM SUBSTRATO DE CONVERSOR

PublicadaInvention Patent

Application data

Number

PI8704241

Type

Invention Patent

Filing

08/17/1987

Publication

02/21/1989

Progress at the INPI

  1. Filing08/17/87
  2. Publication02/21/89
  3. Examination01/28/92
  4. Allowance03/09/93
  5. Grant08/31/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tenneco Automotive Inc

US

Tennessee Gas Pipeline Company

US

See this company's full portfolio

Inventors

L. D. (pessoa física)

US

T. S. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/21/1989

RPI 957

Pedido de patente depositado

#2.1

11/10/1987

RPI 890

Carta-patente expirada

#21.1

Patente extinta em 17/08/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

Transferido de: Tennessee Gas Pipeline Company

12/01/1998

RPI 1456

Alteração de sede deferida

#25.7

Alterada a sede conforme petição nº018356 de 22/08/97.

11/10/1998

RPI 1453

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/29/1993

RPI 1178

Deferimento

#9.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

01/28/1992

RPI 1104

14.11

08/27/1991

RPI 1082

14.4

07/02/1991

RPI 1074

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