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Official data from INPI

PROCESSO PARA A VEDAÇÃO INTERMEDIÁRIA DAS CAMADAS RESIDUAIS SUPERIORES DE UM DEPÓSITO

Em AnáliseInvention Patent

Application data

Number

PI8906449

Type

Invention Patent

Filing

12/14/1989

Publication

08/28/1990

Progress at the INPI

  1. Filing12/14/89
  2. Publication08/28/90
  3. Examination01/19/93
  4. Allowance
  5. Grant
  6. In force

Published on 08/28/1990, 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: 08/23/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

B. K. (pessoa física)

H. F. (pessoa física)

J. S. (pessoa física)

R. R. (pessoa física)

W. V. (pessoa física)

Technical data

Priority claims

DE

P 38 42 212.3 · 12/15/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

01/19/1993

RPI 1155

Publicação do pedido de patente

#3.1

08/28/1990

RPI 1030

Pedido de patente depositado

#2.1

04/03/1990

RPI 1012

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