Official data from INPI

DISPOSITIVO GERADOR DE PRESSÃO DE FRENAGEM PARA UM CONJUNTO DE FREIO DE CIRCUITO DUPLO

ConcedidaInvention Patent

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Application data

Number

PI8500842

Type

Invention Patent

Filing

02/22/1985

Publication

10/15/1985

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Progress at the INPI

Filing02/22/85
Publication10/15/85
Examination09/29/87
Allowance08/23/88
Grant09/26/89
Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Société Anonyme D.B.A., empresa francesa

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Inventors

G. K. (pessoa física)

Technical data

IPC Classification

B60T 11/20

Priority claims

84-02654 · 02/22/1984

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

12/13/1988

RPI 947

Deferimento

#9.1

08/23/1988

RPI 931

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

10/15/1985

RPI 782

Pedido de patente depositado

#2.1

05/14/1985

RPI 760

Carta-patente expirada

#21.1

Patente extinta em 22/02/2000

07/15/2008

RPI 1958

20.4

08/07/1990

RPI 1027

20.7