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Official data from INPI

PROCESSO PARA CONTROLE DE UM FORNO DE REAQUECIMENTO CONTINUO

ConcedidaInvention Patent

Application data

Number

PI8107230

Type

Invention Patent

Filing

11/08/1980

Publication

07/27/1982

Progress at the INPI

  1. Filing11/08/80
  2. Publication07/27/82
  3. Examination10/19/82
  4. Allowance08/21/84
  5. Grant03/26/85
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUBISHI ELECTRIC CORP [JP]

Inventors

M. K. (pessoa física)

Y. H. (pessoa física)

Y. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

10/19/1982

RPI 626

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Pedido de patente depositado

#2.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

Patente extinta em 06/11/96

08/19/2008

RPI 1963

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