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Official data from INPI

DISPOSIÇÃO DA REFRIGERAÇÃO DE UM ELETRODO DE FUNDO PARA UM FORNO DE ARCO VOLTÁICO DE CORRENTE CONTÍNUA

DeferidaInvention Patent

Application data

Number

PI8403725

Type

Invention Patent

Filing

07/26/1984

Publication

07/02/1985

Progress at the INPI

  1. Filing07/26/84
  2. Publication07/02/85
  3. Examination06/03/86
  4. Allowance10/10/89
  5. Grant10/30/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC Brown, Boveri & Company Limited

CH

See this company's full portfolio

Inventors

K. B. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

4136/83-5 · 07/28/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/10/1989

RPI 990

102

08/15/1989

RPI 982

Pedido de recurso

#12.3

05/16/1989

RPI 969

11.3

12/27/1988

RPI 949

Exigência - art. 36 da LPI

#6.1

05/31/1988

RPI 919

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação do pedido de patente

#3.1

07/02/1985

RPI 767

Pedido de patente depositado

#2.1

10/02/1984

RPI 728

Carta-patente expirada

#21.1

Patente extinta em 26/07/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

10/30/1990

RPI 1039

15.17

08/14/1990

RPI 1028

Retificação

#15.3

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

02/06/1990

RPI 1005

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