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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8401588

Type

Invention Patent

Filing

04/05/1984

Publication

11/13/1984

Progress at the INPI

  1. Filing04/05/84
  2. Publication11/13/84
  3. Examination11/25/86
  4. Allowance04/04/89
  5. Grant09/26/89
  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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. W. (pessoa física)

GB

Inventors

C. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

08/01/1989

RPI 980

Deferimento

#9.1

04/04/1989

RPI 963

Exigência - art. 36 da LPI

#6.1

06/21/1988

RPI 922

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

14.1

03/31/1987

RPI 858

Solicitação de exame técnico

#4.1

11/25/1986

RPI 840

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Carta-patente expirada

#21.1

Patente extinta em 05/04/99

07/08/2008

RPI 1957

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