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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8304634

Type

Invention Patent

Filing

08/26/1983

Publication

04/03/1984

Progress at the INPI

  1. Filing08/26/83
  2. Publication04/03/84
  3. Examination04/15/86
  4. Allowance03/01/88
  5. Grant09/27/88
  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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Knorr-Bremse Ag

DE

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

14.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

04/15/1986

RPI 808

Publicação do pedido de patente

#3.1

04/03/1984

RPI 702

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Carta-patente expirada

#21.1

Patente extinta em 26/08/98

07/01/2008

RPI 1956

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