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Official data from INPI

DISPOSITIVO DE ASSISTÊNCIA HIDRÁULICA

ConcedidaInvention Patent

Application data

Number

PI8500951

Type

Invention Patent

Filing

02/28/1985

Publication

10/22/1985

Progress at the INPI

  1. Filing02/28/85
  2. Publication10/22/85
  3. Examination09/29/87
  4. Allowance12/06/88
  5. Grant09/26/89
  6. 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.

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

Société Anonyme D.B.A., empresa francesa

FR

See this company's full portfolio

Inventors

G. K. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84-03105 · 02/29/1984

FR

84-04843 · 03/28/1984

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

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

10/22/1985

RPI 783

Pedido de patente depositado

#2.1

05/28/1985

RPI 762

Carta-patente expirada

#21.1

Patente extinta em 28/02/2000

07/15/2008

RPI 1958

20.4

08/07/1990

RPI 1027

20.7

08/07/1990

RPI 1027

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