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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM ARTIGO

Prazo de SigiloInvention Patent

Application data

Number

PI8705286

Type

Invention Patent

Filing

10/06/1987

Publication

04/25/1989

Progress at the INPI

  1. Filing10/06/87
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 10/06/1987. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

A. U. (pessoa física)

US

K. S. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Publicação do pedido de patente

#3.1

04/25/1989

RPI 966

Pedido de patente depositado

#2.1

01/05/1988

RPI 898

Retificação

#15.3

10/18/1994

RPI 1246

Pedido de certificado de adição de invenção

#5.1

12/10/1991

RPI 1097

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

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