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Official data from INPI

CIRCUITO CONVERSOR DE DESLOCAMENTO A DOIS FIOS.

ConcedidaInvention Patent

Application data

Number

PI8204697

Type

Invention Patent

Filing

08/10/1982

Publication

02/07/1984

Progress at the INPI

  1. Filing08/10/82
  2. Publication02/07/84
  3. Examination01/21/86
  4. Allowance09/08/87
  5. Grant04/26/88
  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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fuji Electric Co.,Ltd

JP

See this company's full portfolio

Inventors

K. T. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

57-111243 · 06/28/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Exigência - art. 36 da LPI

#6.1

01/27/1987

RPI 849

Solicitação de exame técnico

#4.1

01/21/1986

RPI 796

Publicação do pedido de patente

#3.1

02/07/1984

RPI 694

Pedido de patente depositado

#2.1

09/21/1982

RPI 622

Carta-patente expirada

#21.1

Patente extinta em 10/08/97

07/01/2008

RPI 1956

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