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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104247

Type

Invention Patent

Filing

07/01/1981

Publication

02/08/1983

Progress at the INPI

  1. Filing07/01/81
  2. Publication02/08/83
  3. Examination08/23/83
  4. Allowance12/17/85
  5. Grant08/26/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sharp Corporation (SHARP KABUSHIKI KAISHA).

JP

Inventors

A. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

05/28/1985

RPI 762

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

02/08/1983

RPI 642

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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