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Official data from INPI

DISPOSITIVO DE AQUECIMENTO PARA FORNOS DE COZIMENTO ABERTOS COM CHAMA GIRATÓRIA E PROCESSO DE APLICAÇÃO DESSE DISPOSITIVO.

ConcedidaInvention Patent

Application data

Number

PI8207946

Type

Invention Patent

Filing

10/27/1982

Publication

09/20/1983

Progress at the INPI

  1. Filing10/27/82
  2. Publication09/20/83
  3. Examination04/09/85
  4. Allowance05/17/88
  5. Grant12/27/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

FR

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Inventors

T. [. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

82/00175 · 10/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

10/06/1987

RPI 885

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Notificação de entrada na fase nacional - PCT

#1.3

09/20/1983

RPI 674

Carta-patente expirada

#21.1

Patente extinta em 27/10/97

07/01/2008

RPI 1956

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