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Official data from INPI

MEIO PARA O ARMAZENAMENTO DE INFORMAÇÃO QUE PODE SER LIDO USANDO-SE UM DISPOSITIVO ÓTICO E MÉTODO DE FABRICAÇÃO DE UM MEIO DE ARMAZENAMENTO DE MEMÓRIA ÓTICA

Prazo de SigiloInvention Patent

Application data

Number

PI8904128

Type

Invention Patent

Filing

08/11/1989

Publication

04/10/1990

Progress at the INPI

  1. Filing08/11/89
  2. Publication04/10/90
  3. Examination06/09/92
  4. Allowance
  5. Grant
  6. In force

Published on 04/10/1990, 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

A. S. (pessoa física)

D. P. (pessoa física)

R. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

US

231.119 · 08/11/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/10/1989

RPI 990

Retificação

#15.3

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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