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Official data from INPI

APERFEICOAMENTO EM PRESSURIZADOR HIDRAULICO

Em AnáliseInvention Patent

Application data

Number

PI8205494

Type

Invention Patent

Filing

09/20/1982

Publication

05/02/1984

Progress at the INPI

  1. Filing09/20/82
  2. Publication05/02/84
  3. Examination07/24/84
  4. Allowance08/20/85
  5. Grant05/27/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 11/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. L. (pessoa física)

Inventors

L. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/04/1986

RPI 837

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Publicação do pedido de patente

#3.1

05/02/1984

RPI 706

Pedido de patente depositado

#2.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

Patente extinta em 20/09/97

08/19/2008

RPI 1963

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