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Official data from INPI

BUCHA DE PASSAGEM

PublicadaInvention Patent

Application data

Number

PI8800137

Type

Invention Patent

Filing

01/15/1988

Publication

09/05/1989

Progress at the INPI

  1. Filing01/15/88
  2. Publication09/05/89
  3. Examination06/12/90
  4. Allowance
  5. Grant
  6. In force

Published on 09/05/1989, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centro de Pesquisas de Energia Elétrica - CEPEL

RJ, BR

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Inventors

G. Z. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/05/1989

RPI 985

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Retificação

#15.3

05/24/1994

RPI 1225

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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