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Official data from INPI

APERFEICOAMENTOS INTRODUZIDOS EM DISPOSITIVO DE VEDACAO

ConcedidaInvention Patent

Application data

Number

PI8405669

Type

Invention Patent

Filing

11/07/1984

Publication

07/16/1985

Progress at the INPI

  1. Filing11/07/84
  2. Publication07/16/85
  3. Examination10/29/85
  4. Allowance06/21/88
  5. Grant12/27/88
  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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. J. (pessoa física)

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Deferimento

#9.1

06/21/1988

RPI 922

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Publicação antecipada

#3.2

07/16/1985

RPI 769

Pedido de patente depositado

#2.1

01/22/1985

RPI 744

Carta-patente expirada

#21.1

Patente extinta em 07/11/99

08/19/2008

RPI 1963

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