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Official data from INPI

PROCESSO E DISPOSITIVO PARA A REGULAGEM DA POTÊNCIA DE FOGO DE INSTALAÇÕES DE COMBUSTÃO

Prazo de SigiloInvention Patent

Application data

Number

PI8903837

Type

Invention Patent

Filing

07/31/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing07/31/89
  2. Publication03/20/90
  3. Examination08/28/90
  4. Allowance06/02/92
  5. Grant02/24/93
  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.

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Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Martin Gmbh Fuer Umwelt- Und Energietechnik

DE

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Inventors

J. M. (pessoa física)

DE

Technical data

Priority claims

DE

P3825931.1 · 07/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/28/1989

RPI 997

Carta-patente expirada

#21.1

Patente extinta em 31/07/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

02/24/1993

RPI 1160

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

06/02/1992

RPI 1122

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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