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Official data from INPI

PROCESSO PARA A INTRODUÇÃO DE UM AGENTE DE TRATAMENTO EM FORMA DE PRODUTOS QUÍMICOS NA CORRENTE DE GÁS DE ESCAPE NOS PROCESSOS DE COMBUSTÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005345

Type

Invention Patent

Filing

10/23/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing10/23/90
  2. Publication09/17/91
  3. Examination05/05/92
  4. Allowance01/05/99
  5. Grant08/10/99
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Martin Gmbh Fuer Umwelt-Und Energietechnik.

DE

See this company's full portfolio

Inventors

J. M. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 35 400.8 · 10/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/10/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/10/1999

RPI 1492

Deferimento

#9.1

01/05/1999

RPI 1461

Exigência - art. 36 da LPI

#6.1

12/30/1997

RPI 1410

Solicitação de exame técnico

#4.1

05/05/1992

RPI 1118

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/16/1991

RPI 1063

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